Langs: adding Perl
CSS: setting style to show editor white-space
Setting patterns for lineBreaks and tabs
Abstracted method to set buffer text
Improving first line checking before setting text
Merge pull request #2 from leobalter/1-perl-whitespace

Adds Perl code and fixes whitespace issues
langs by alphabetical order
adding url to contributors at github
adding color on moveover on links
css in alphabetical order
adding go lang
adding c lang
removing text/javascript
applying jshint - 0 erros
removing 0pc
adding tweet button
update instructions on readme
Update README.md
Update README.md