Add an animation to provide feedback for asynchronous CZML loading.
Different loading animation, not English-specific.  Better?
Code review
Small fixes to date logic in the Timeline demo app
Fix test failures in the TMS imagery provider.

The failures were introduced with pull request #364.
Merge pull request #421 from AnalyticalGraphicsInc/fixTmsTestFailures

Fix test failures in the TMS imagery provider.
Merge part of pull request #387 from vicb/review2

Code review
Clean up some scattered whitespace and formatting problems.
Merge pull request #422 from AnalyticalGraphicsInc/whitespace_fixes

Clean up some scattered whitespace and formatting problems.
Merge branch 'master' into viewerLoading
Fix warnings/errors in TileMapServiceImageryProvider.
Better cleanup of previous submit.
Throw an error if the end time comes before the start time.
Make loading indicator non-blocking.
Better centing for loading image so that it doesn't disable viewer UI.
Fixes after merge.
Merge pull request #423 from AnalyticalGraphicsInc/tmsCleanup

Tms cleanup
Merge remote-tracking branch 'origin/master' into viewerLoading
Use `absolute` instead of `fixed`
Merge pull request #384 from AnalyticalGraphicsInc/viewerLoading

Add an animation to provide feedback for asynchronous CZML loading.