feat(directives): ng-switch, ng-switch-when, ng-switch-default

Closes #136
feat(ng_bind_html): ng-bind-html directive to innerHTML an expression

Closes #116
chore(dartanalyzer): run dartanalyzer before tests
feat(directives): ngCloak

Closes #121
chore: removed debug prints
chore(angular): remove unused imports
feat(mocks): MockHttpBackend
chore(directives): reformat import/export lines
feat(ng-non-bindable): implement ng-non-bindable

Closes #132
test(ng-non-bindable): test successor sibling bindings
fix(mocks): Fixed a dart2js error in MockHttpBackend
fix(interpolate): Fixes boolean errors.
fix(mocks): Fixed a analyzer warning in MockHttpBackend
feat(Zone): collect LongStackTrace acros runAsync
chore(perf): exception throwing speed comparison
hack(tests): Work-around dartbug.com/13518
hack(ng_events): Remove the Getter type information to work around dartbug.com/13519
test(parser): Made a parser test more generic to pass in both VM and dart2js
fix(parser): Look for UnsupportedError as well as NoSuchMethod in the dynamic parser getter to support dart2js
test(zones): Check for exception string for both dart2js and the VM