Fixed JSObject(null) and added tests
Merge pull request #1 from JamesHutchison/None_null_fix

Fixes JSObject(null)
Merge pull request #8 from kikocorreoso/master

PR to fix issue#3 (old style format with signed integer decimal)
Change version number to 2.2.1
Minor improvement in assignment to subscriptions
Fixes monstruous bug : "import this" failed !