Initial changes for API restructuring

• Merge of last few month's work from the 'sub-domains' branch.
• Starting to move more code into APIs that will eventually become a library.
• There is some experimental support for adding conditions to stencil equations to specify their sub-domains.

KNL SF0815 4node

v20160815

Update perf and MPI docs.

KNL SF0620 1node

v20160620

Change build defaults

Hot Teams

Add support for Intel OpenMP hot teams.

Hot teams is now the default.
Crew still supported, but disabled by default.

KNL launch TR2326 v2

Version used to create data for launch collateral.

Wavefront

Added support for temporal wave-front blocking and minimal MPI.

Initial public release

v20160202

Move build and run commands to pdf doc.