update elements and fix some bugs

lib/src/prism/components/prism-git.js

 Prism.languages.git = {
         /*
          * A simple one line comment like in a git status command
          * For instance:
          * $ git status
          * # On branch infinite-scroll
          * # Your branch and 'origin/sharedBranches/frontendTeam/infinite-scroll' have diverged,
          * # and have 1 and 2 different commits each, respectively.
          * nothing to commit (working directory clean)
          */
-        'comment': /^#.*$/m,
+        'comment': /^#.*/m,
+
+        /*
+         * Regexp to match the changed lines in a git diff output. Check the example below.
+         */
+        'deleted': /^[-–].*/m,
+        'inserted': /^\+.*/m,
 
         /*
          * a string (double and simple quote)
          */
         'string': /("|')(\\?.)*?\1/m,
 
         /*
          * a git command. It starts with a random prompt finishing by a $, then "git" then some other parameters
          * For instance:
          * $ git add file.txt
@@ skipping 20 matching lines @@
          * --- file.txt
          * +++ file.txt
          * @@ -1 +1,2 @@
          * -Here's my tetx file
          * +Here's my text file
          * +And this is the second line
          */
         'coord': /^@@.*@@$/m,
 
         /*
-         * Regexp to match the changed lines in a git diff output. Check the example above.
-         */
-        'deleted': /^-(?!-).+$/m,
-        'inserted': /^\+(?!\+).+$/m,
-
-        /*
          * Match a "commit [SHA1]" line in a git log output.
          * For instance:
          * $ git log
          * commit a11a14ef7e26f2ca62d4b35eac455ce636d0dc09
          * Author: lgiraudel
          * Date:   Mon Feb 17 11:18:34 2014 +0100
          *
          *     Add of a new line
          */
         'commit_sha1': /^commit \w{40}$/m
 };