Fixed bug in short type, added tests for short and unsigned short.
Beautifier applied
Added tests for DOMString
Added double tests
Fixed a bunch of tests
removed isNegative0 function as it was not needed
Added more rebust -0 check.
Fixed up tests a little bit.
Implemented UnrestrictedFloat.js
Added UnrestrictedFloat tests
fixed merge conflict
a little linting and beautification
Merge pull request #53 from extensibleweb/UnrestrictedFloat-type

Implementation of Unrestricted float + tests; some minor fixes to Float.