Don't allow scratch arrays used by mergeSort to grow unbounded.

Pre-allocate before sorting, and trim after.
Merge pull request #1750 from AnalyticalGraphicsInc/compactMergeSortScratchArrays

Don't allow scratch arrays used by mergeSort to grow unbounded.
Minor Sandcastle improvements.

Add a toolbar element to most examples to make it easier to copy/paste from one example to another.
Make CTRL-Home and End work properly again.  A Dojo upgrade changed the method we have to hack out to disable the TabContainer key binding.
Remove dither from renderstate for IE 11.0.8
sampleCoverage workaround for IE 11.0.8
Merge pull request #1751 from AnalyticalGraphicsInc/sandcastleTweaks

Minor Sandcastle improvements.
Merge pull request #1752 from AnalyticalGraphicsInc/ie11-states

IE 11 workarounds for render states
Remove unnecessary `../Core`-type paths for modules.
Merge pull request #1756 from AnalyticalGraphicsInc/fixRequires

Remove unnecessary `../` paths for modules.