Fix a failure case in pluginloader where an onerror callback was not being set.

Probably is never triggered... Might as well though.
[All] remove mistaken windows only debug message
[all] Fix pluginloader never finishing (broken by recent commit)
[all] [CB-3639] Remove console from core.
catch exception for missing or invalid file path
[CB-4187] Fix start-up stalling when no plugins are installed.
[CB-4004] Fix Android JS bridge break caused by bad rebase before 5ba835c
Fix grunt tests by deleting plugin-related and legacy BB tests
[CB-4187] Fix the fix for start-up when no plugins are installed.
[CB-4281] Moving echo to a plugin in mobilespec
jshint cleanup (sorry im ocd)
[Windows8] remove all plugins
[CB-4420] Add a helper function for resolving relative URLs.

Note that the tests required a newer version of jsdom.
Change Gruntfile to auto-build before running tests
Make base64 tests work in browser as well as Node
[CB-4419] Remove non-CLI platforms from cordova-js.

They live on in the 2.9.x branch.
[CB-4419] Remove non-CLI bootstrap files from cordova-js.
[all] Move some start-up logic from cordova.js -> bootstrap.js
[CB-4428] Delete Android storage plugin from cordova-js

It will be moved into cordova-labs
[win8] Move commandProxy.js into windows8/

Doesn't look to be used by any other platform.