remove view all code

fixes #2
contributing file
updated readme

mentions to spec
added repository to package.json

fixes #32
changed dependencies

should support NPM this way. need to reconcile with Travis
removed scripts files

not supported feature yet
reverted dependencies for now.

pl is a development tool. it cannot run in a production mode since it
needs to be built at least once...
Merge pull request #39 from pattern-lab/plnode1-1

PL Node 1.1