Moved some linux-only logic from travis config to script.
Removing compilier aliases
Adding back aliases
Setting initial NuPIC version at 0.0.1
Added pypirc config
Updated env var specifying NUPIC root for examples.

Since these examples are running from within another repo
(nupic.regression), using the TRAVIS_BUILD_DIR variable points to the
wrong place. Replacing it with NUPIC should fix the regression tests.
Parsing requirements.txt into setup install_requires
Updated changelog
Merge branch 'master' of github.com:numenta/nupic into version-downgrade
Merge branch 'setup-requirements-2' into pypi-wheels
Adding deploy to pypi directive
Removed dependency on pip for parsing requirements
Merge pull request #1638 from rhyolight/version-downgrade

Setting initial NuPIC version at 0.0.1
Merge branch 'setup-requirements-2' into pypi-wheels
Removed pypi config file.

Travis-CI has pre-defined configuration for pypi deployments.
Merge branch 'version-downgrade' into pypi-wheels

Conflicts:
	CHANGELOG.md
Merge branch 'master' of github.com:numenta/nupic into setup-requirements-2

Conflicts:
	CHANGELOG.md
Merge pull request #1637 from rhyolight/setup-requirements-2

Parsing requirements.txt -> setup install_requires
Merge branch 'master' of github.com:numenta/nupic into pypi-wheels
Updated changelog