Perl syntax highlighting doesn't recognize regex delimiters other than /regex/

[goober99]

monaco-editor version: 0.14.3
Browser: Chromium 51
OS: Ubuntu 15.10
Steps or JS usage snippet reproducing the issue:

The Perl syntax highlighter doesn't recognize regex delimiters other than /regex/ for regular expressions. Perl allows the use of alternative delimiters such as m!regex!. This throws off the highlighting when using a character such an apostrophe (like m!can't!). The syntax highlighter thinks the apostrophe is the beginning of a single quote and highlights everything that comes after it as a string:

[goober99]

I have submitted a pull request.

[alexdima]

Thank you, fixed via microsoft/monaco-languages#50