BricLayer now supports the hookupActions of the activity config. (story 445 complete)

* action type 'method-call'
* dynamic value types 'ref' and 'constant'
* unit tests
* NeffReactor test page updated w/ working hookupActions
changed the building.info seqNodeId property name to be sequenceNodeKey

This keeps the terminology consistent as seann pointed out.
Merge pull request #95 from lbondaryk/BricLayer

story 445: BricLayer feature work - build brix and render (hookupActions), but no mortar
Merge remote-tracking branch 'upstream/master' into BrixIPC_783

BrixLayer update merged
Added mocking framework sinon-1.7.3.js
Unit test for ipc