Case insensitive RegEx match

Don't work now: HEADER{POSITION:STICKY;}
Removing unimportant case insensitive rules

Removing unimportant case insensitive rules from my first fix propose
Merge pull request #14 from dvorapa/patch-1

Case insensitive RegEx match
Added debounced scroll handling
Merge pull request #17 from stucox/master

Added debounced scroll handling
Merge pull request #1 from matthewp/master

merged all changes from matthewp into bower package