Added $log support before AngularJS bootstraps

Both $log an $log.getInstance() supports supplant() internally
ExternalLogger can be injected pre-bootstrap for $log simulation before AngularJS injects valid $log references
Merge branch 'master' of github.com:ThomasBurleson/angularjs-logDecorator

Conflicts:
	src/mindspace/logger/LogEnhancer.js