fixed link href attributes
use html folder as base directory
changed guid to md5 sum
wrote tests for css and removed wait dependency
creating suport for multiple parameters
made refactoring in Params object
removed comments
implemented behavior to avoid overriding files unnecessarily
solved problems with parameters
solved problem with root
updated root
Merge branch 'change-guid-to-md5-sum' of https://github.com/gibatronic/node-compressor into gibatronic-change-guid-to-md5-sum

Conflicts:
	index.js
	lib/compressor.js
Merge branch 'gibatronic-change-guid-to-md5-sum' into dev
refactoring: created function with code that remove old cache files
imrpoved readme
created method to cache variables of constructor
changed ways of searching js and css files: now it search through the directory where the html file is
removed validation unnecessary
removed unnecessary validation callback
Merge pull request #16 from EvandroLG/better-readme

imrpoved readme