Merge pull request #110 from cogmission/coordinatework

Coordinatework
Removing docs from source control.

- added "/docs" to git ignore
- removed "/docs" from git

Fixes #99.
Merge pull request #111 from rhyolight/remove-docs

Removes docs from source control.
Refactor ArrayList.dimensionsToCoordinateList to limit recursion to dimensions size
Change output of ArrayList.dimensionsToCoordinateList from List of Lists to List of int[] - less memory
Add exec time tracking to ArrayUtilsTest
Merge pull request #115 from solovyevk/refactore_recurse

Refactor ArrayList.dimensionsToCoordinateList to limit recursion to dime...
Merge remote-tracking branch 'upstream/master' into coordinatework

Conflicts:
	src/test/java/org/numenta/nupic/util/ArrayUtilsTest.java