Adds first pass at arithemetic scalar encoder.
Merge branch 'master' into arithmetic-encoder
Add initial support for the Raspberry Pi platform
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into arithmetic-encoder
Merge branch 'master' into arithmetic-encoder
added c++ spatial pooler skeleton
Add linux32arm directory for Raspberry Pi
Merge remote-tracking branch 'upstream/master'
remove unused testing and test dirs to clean up linux32arm
Merge remote-tracking branch 'upstream/master'
Remove unused platform specific libs to sync with the master codebase
Update apr include files for arm platform
fixed cpp spatial pooler test
Merge branch 'master' of github.com:numenta/nupic into spcpp
added skeleton python unit test for c++ spatial pooler
removed/added newlines at end of files
Merge remote-tracking branch 'upstream/master'

Conflicts:
	nta/algorithms/Cells4.cpp
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'