MDL-55167 less: fix missing semi colons

Detected by:
http://stylelint.io/user-guide/rules/declaration-block-trailing-semicolon/

theme/bootstrapbase/less/moodle/admin.less

@@ -264,7 +264,7 @@ img.iconsmall {
 
 .path-admin .roleassigntable td {
     vertical-align: top;
-    padding: 0.2em 0.3em
+    padding: 0.2em 0.3em;
 }
 
 .path-admin .roleassigntable p {
@@ -360,7 +360,7 @@ img.iconsmall {
 
 .dir-rtl .environmenttable img.iconhelp {
     padding-left: .3em;
-    padding-right: 0
+    padding-right: 0;
 }
 
 #trustedhosts .generaltable {
@@ -526,7 +526,7 @@ img.iconsmall {
 .dir-rtl .form-item  .form-label,
 .dir-rtl .form-item .form-description,
 .dir-rtl.path-admin .roleassigntable p {
-    text-align: right
+    text-align: right;
 }
 
 #page-admin-index #notice .checkforupdates {

theme/bootstrapbase/less/moodle/core.less

@@ -682,7 +682,7 @@ table.mod_index {
     position: relative;
 }
 .comment-list li.first {
-    display: none
+    display: none;
 }
 .comment-paging{
     text-align: center;
@@ -721,19 +721,19 @@ table.mod_index {
     margin: .3em;
 }
 .comment-report-selectall{
-    display: none
+    display: none;
 }
 .comment-link {
-    display: none
+    display: none;
 }
 .jsenabled .comment-link {
-    display: block
+    display: block;
 }
 .jsenabled .showcommentsnonjs{
-    display: none
+    display: none;
 }
 .jsenabled .comment-report-selectall{
-    display: inline
+    display: inline;
 }
 /**
 * Completion progress report
@@ -1259,7 +1259,7 @@ tr.flagged-tag a {
 }
 
 #page-enrol-users .enrol-users-page-action input {
-    margin-left: 0
+    margin-left: 0;
 }
 
 /**
@@ -1311,7 +1311,7 @@ tr.flagged-tag a {
 }
 .label .mod-indent {
     float: left;
-    padding-top: 20px
+    padding-top: 20px;
 }
 
 /* Creates a series of .mod-indent-# rule declarations based on indent size and number of indent levels. */
@@ -1333,10 +1333,10 @@ tr.flagged-tag a {
 /* Audio player size in 'block' mode (can only change width, height is hardcoded in JS) */
 .resourcecontent .mediaplugin_mp3 object {
     height: 25px;
-    width: 600px
+    width: 600px;
 }
 .resourcecontent audio.mediaplugin_html5audio {
-    width: 600px
+    width: 600px;
 }
 /** Large resource images should avoid hidden overflow **/
 .resourceimage {
@@ -1345,10 +1345,10 @@ tr.flagged-tag a {
 /* Audio player size in 'inline' mode (can only change width, as above) */
 .mediaplugin_mp3 object {
     height: 15px;
-    width: 300px
+    width: 300px;
 }
 audio.mediaplugin_html5audio {
-    width: 300px
+    width: 300px;
 }
 /* TinyMCE moodle media preview frame should not have padding */
 .core_media_preview.pagelayout-embedded #content {
@@ -1421,7 +1421,7 @@ body#page-lib-editor-tinymce-plugins-moodlemedia-preview {
 }
 .dir-rtl .ygtvlph,
 .dir-rtl .ygtvlphh {
-    background-position: 0 -3200px
+    background-position: 0 -3200px;
 }
 .dir-rtl .ygtvdepthcell {
     background-position: 0 -8000px;
@@ -1601,7 +1601,7 @@ body#page-lib-editor-tinymce-plugins-moodlemedia-preview {
     text-align: center;
 }
 .moodle-dialogue-exception .moodle-exception-message {
-    text-align: center
+    text-align: center;
 }
 .moodle-dialogue-exception .moodle-exception-param label {
     font-weight: bold;
@@ -1639,7 +1639,7 @@ body#page-lib-editor-tinymce-plugins-moodlemedia-preview {
     margin: 0.5em 1em;
 }
 .moodle-dialogue-confirm .confirmation-dialogue input {
-    min-width: 80px
+    min-width: 80px;
 }
 .moodle-dialogue-exception .moodle-exception-message {
     margin: 1em;

theme/bootstrapbase/less/moodle/course.less

@@ -396,7 +396,7 @@
 }
 
 .path-course-view .completionprogress {
-    margin-left: 25px
+    margin-left: 25px;
 }
 
 .path-course-view .completionprogress {

theme/bootstrapbase/less/moodle/forms.less

@@ -18,7 +18,7 @@ form {
     display: block;
 }
 .mform fieldset.group {
-    margin-bottom: 0
+    margin-bottom: 0;
 }
 .mform fieldset.error {
     border: 1px solid @errorText;

theme/bootstrapbase/less/moodle/message.less

@@ -223,12 +223,12 @@ table.message .searchresults td {
         margin: 0 3%;
     }
     .message .messagearea .messagehistory .user {
-        width: 32%
+        width: 32%;
     }
 }
 @media screen and (min-width: 1200px) {
     .message .messagearea .messagehistory .user {
-        width: 25%
+        width: 25%;
     }
 }
 .message .messagearea .messagehistory .heading {