First pass of interpreter for declarative handlers
request parsing for declarative proxy handler
Improved request parsing for declarative proxy handlers
Made declarative handler distinguish literals from refrences
Merge branch 'interpreter' of github.com:hardikj/restbase into hardikj-interpreter

Conflicts:
	lib/proxyHandler.js
	package.json
Merge pull request #36 from wikimedia/interpreter

First pass of interpreter for declarative handlers