diff --git a/app/Resources/public/css/themes/rainbow/default.css b/app/Resources/public/css/themes/rainbow/default.css
index 5f3349410a..573da89fdd 100755
--- a/app/Resources/public/css/themes/rainbow/default.css
+++ b/app/Resources/public/css/themes/rainbow/default.css
@@ -2059,4 +2059,13 @@ blockquote p {
 .skills_chart > ul > li > ul > li > a {
     width: 8em;
 }
-
+.communications #skillList .thumbnail{
+    border: none;
+}
+.communications #skillList .table-bordered{
+    border: 1px solid #84bd00;
+}
+.table thead tr th.achieved{
+    vertical-align: bottom;
+    border-bottom: 2px solid #84bd00;
+}
\ No newline at end of file
diff --git a/app/bootstrap.php.cache b/app/bootstrap.php.cache
index c968f55da0..300520e6d9 100644
--- a/app/bootstrap.php.cache
+++ b/app/bootstrap.php.cache
@@ -205,7 +205,7 @@ $this->headers[$key] = $values;
 $this->headers[$key] = array_merge($this->headers[$key], $values);
 }
 if ('cache-control'=== $key) {
-$this->cacheControl = $this->parseCacheControl($values[0]);
+$this->cacheControl = $this->parseCacheControl(implode(', ', $this->headers[$key]));
 }
 }
 public function has($key)
@@ -332,6 +332,9 @@ $file = new UploadedFile($file['tmp_name'], $file['name'], $file['type'], $file[
 }
 } else {
 $file = array_map(array($this,'convertFileInformation'), $file);
+if (array_keys($keys) === $keys) {
+$file = array_filter($file);
+}
 }
 }
 return $file;
@@ -387,7 +390,7 @@ $authorizationHeader = $this->parameters['REDIRECT_HTTP_AUTHORIZATION'];
 if (null !== $authorizationHeader) {
 if (0 === stripos($authorizationHeader,'basic ')) {
 $exploded = explode(':', base64_decode(substr($authorizationHeader, 6)), 2);
-if (count($exploded) == 2) {
+if (2 == count($exploded)) {
 list($headers['PHP_AUTH_USER'], $headers['PHP_AUTH_PW']) = $exploded;
 }
 } elseif (empty($this->parameters['PHP_AUTH_DIGEST']) && (0 === stripos($authorizationHeader,'digest '))) {
@@ -590,22 +593,22 @@ self::$requestFactory = $callable;
 public function duplicate(array $query = null, array $request = null, array $attributes = null, array $cookies = null, array $files = null, array $server = null)
 {
 $dup = clone $this;
-if ($query !== null) {
+if (null !== $query) {
 $dup->query = new ParameterBag($query);
 }
-if ($request !== null) {
+if (null !== $request) {
 $dup->request = new ParameterBag($request);
 }
-if ($attributes !== null) {
+if (null !== $attributes) {
 $dup->attributes = new ParameterBag($attributes);
 }
-if ($cookies !== null) {
+if (null !== $cookies) {
 $dup->cookies = new ParameterBag($cookies);
 }
-if ($files !== null) {
+if (null !== $files) {
 $dup->files = new FileBag($files);
 }
-if ($server !== null) {
+if (null !== $server) {
 $dup->server = new ServerBag($server);
 $dup->headers = new HeaderBag($dup->server->getHeaders());
 }
@@ -816,7 +819,7 @@ $host = $host[0];
 } elseif (!$host = $this->headers->get('HOST')) {
 return $this->server->get('SERVER_PORT');
 }
-if ($host[0] ==='[') {
+if ('['=== $host[0]) {
 $pos = strpos($host,':', strrpos($host,']'));
 } else {
 $pos = strrpos($host,':');
@@ -847,7 +850,7 @@ public function getHttpHost()
 {
 $scheme = $this->getScheme();
 $port = $this->getPort();
-if (('http'== $scheme && $port == 80) || ('https'== $scheme && $port == 443)) {
+if (('http'== $scheme && 80 == $port) || ('https'== $scheme && 443 == $port)) {
 return $this->getHost();
 }
 return $this->getHost().':'.$port;
@@ -1043,7 +1046,7 @@ return in_array($this->getMethod(), array('GET','HEAD'));
 public function getContent($asResource = false)
 {
 $currentContentIsResource = is_resource($this->content);
-if (PHP_VERSION_ID < 50600 && false === $this->content) {
+if (\PHP_VERSION_ID < 50600 && false === $this->content) {
 throw new \LogicException('getContent() can only be called once when using the resource return type and PHP below 5.6.');
 }
 if (true === $asResource) {
@@ -1115,7 +1118,7 @@ $lang = $codes[1];
 }
 } else {
 for ($i = 0, $max = count($codes); $i < $max; ++$i) {
-if ($i === 0) {
+if (0 === $i) {
 $lang = strtolower($codes[0]);
 } else {
 $lang .='_'.strtoupper($codes[$i]);
@@ -1164,14 +1167,14 @@ $this->server->remove('IIS_WasUrlRewritten');
 } elseif ($this->headers->has('X_REWRITE_URL')) {
 $requestUri = $this->headers->get('X_REWRITE_URL');
 $this->headers->remove('X_REWRITE_URL');
-} elseif ($this->server->get('IIS_WasUrlRewritten') =='1'&& $this->server->get('UNENCODED_URL') !='') {
+} elseif ('1'== $this->server->get('IIS_WasUrlRewritten') &&''!= $this->server->get('UNENCODED_URL')) {
 $requestUri = $this->server->get('UNENCODED_URL');
 $this->server->remove('UNENCODED_URL');
 $this->server->remove('IIS_WasUrlRewritten');
 } elseif ($this->server->has('REQUEST_URI')) {
 $requestUri = $this->server->get('REQUEST_URI');
 $schemeAndHttpHost = $this->getSchemeAndHttpHost();
-if (strpos($requestUri, $schemeAndHttpHost) === 0) {
+if (0 === strpos($requestUri, $schemeAndHttpHost)) {
 $requestUri = substr($requestUri, strlen($schemeAndHttpHost));
 }
 } elseif ($this->server->has('ORIG_PATH_INFO')) {
@@ -1207,7 +1210,7 @@ $baseUrl ='/'.$seg.$baseUrl;
 } while ($last > $index && (false !== $pos = strpos($path, $baseUrl)) && 0 != $pos);
 }
 $requestUri = $this->getRequestUri();
-if ($requestUri !==''&& $requestUri[0] !=='/') {
+if (''!== $requestUri &&'/'!== $requestUri[0]) {
 $requestUri ='/'.$requestUri;
 }
 if ($baseUrl && false !== $prefix = $this->getUrlencodedPrefix($requestUri, $baseUrl)) {
@@ -1224,7 +1227,7 @@ $basename = basename($baseUrl);
 if (empty($basename) || !strpos(rawurldecode($truncatedRequestUri), $basename)) {
 return'';
 }
-if (strlen($requestUri) >= strlen($baseUrl) && (false !== $pos = strpos($requestUri, $baseUrl)) && $pos !== 0) {
+if (strlen($requestUri) >= strlen($baseUrl) && (false !== $pos = strpos($requestUri, $baseUrl)) && 0 !== $pos) {
 $baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
 }
 return rtrim($baseUrl,'/'.DIRECTORY_SEPARATOR);
@@ -1255,7 +1258,7 @@ return'/';
 if (false !== $pos = strpos($requestUri,'?')) {
 $requestUri = substr($requestUri, 0, $pos);
 }
-if ($requestUri !==''&& $requestUri[0] !=='/') {
+if (''!== $requestUri &&'/'!== $requestUri[0]) {
 $requestUri ='/'.$requestUri;
 }
 $pathInfo = substr($requestUri, strlen($baseUrl));
diff --git a/main/inc/lib/skill.lib.php b/main/inc/lib/skill.lib.php
index b63e15e19d..960d967c35 100755
--- a/main/inc/lib/skill.lib.php
+++ b/main/inc/lib/skill.lib.php
@@ -1339,7 +1339,7 @@ class Skill extends Model
                     <table class="table">
                         <thead>
                             <tr>
-                                <th>'.get_lang('AchievedSkills').'</th>
+                                <th class="achieved">'.get_lang('AchievedSkills').'</th>
                             </tr>
                         </thead>
                         <tbody>
@@ -1391,7 +1391,7 @@ class Skill extends Model
                         $transparency = '';
                         if ($passed === false) {
                             // @todo use a css class
-                            $transparency = 'opacity: 0.4; filter: alpha(opacity=40);';
+                            $transparency = 'filter: alpha(opacity=40);';
                         }
 
                         $label = $this->processSkillListSimple([$data], 'mini', $transparency);
diff --git a/main/mySpace/myStudents.php b/main/mySpace/myStudents.php
index 1610aa164f..0104d090cf 100755
--- a/main/mySpace/myStudents.php
+++ b/main/mySpace/myStudents.php
@@ -1682,12 +1682,13 @@ if (empty($_GET['details'])) {
     </div>
 <?php
 } //end details
-
+echo '<div class="communications">';
 echo Tracking::displayUserSkills(
     $user_info['user_id'],
     $courseInfo ? $courseInfo['real_id'] : 0,
     $sessionId
 );
+echo '</div>';
 
 if ($allowMessages === true) {
     // Messages