Escape filename

If the filename have special characters it may end up throwing an exception (for instance +1.png). Added preg_quote (borrowed from phpjs.org) to fix this issue
Merge pull request #16 from crodas/patch-1

Escape filename
Renamed to see if npmregistry uses the README.md instead of the old one.
Bump to version 0.3.3
Tests for 'Escape Special Characters' pull request.
Copyright update.
Sublime Text project added.
Testing on more nodejs versions.
Merge pull request #17 from Luismahou/release-escape-filename

Release 0.3.3 - Escape filename
* character is not allowed on Windows.
Bump to 0.3.4.
Merge pull request #19 from Luismahou/bugfix-escape-files-on-windows

Bugfix escape files on windows
Updated the regex to make it work when putting the hash after '?'
Merge pull request #22 from olivierguerriat/master

Updated the regex to make it work when putting the hash after '?'
Support searching and replacing for refererences to previously hashed files.
Added failing test.
Merge remote-tracking branch 'jrduncan/master' into override-hashed-files
Documentation.
Bump to 0.4.0.
Fixing links to github issues.