Merge pull request #25 from saroele/master

Improved compliance tests for OpenModelica and JModelica.org
Added test for omlibrary directory. Cleaned up code. Included doctest.

This is for #25.
Merge branch 'release' as the previous changes where done on the release instead of the master branch.

Conflicts:
	buildingspy/development/regressiontest.py
Changed design of setPackagePath and _checkPackagePath

Replaced Simulator._checkPackagePath as this function not only checked
the argument, but also set a data member. This is now split into to
function. One gets the default package path, and one that sets the
package path.
Updated regression tests.
Fixed punctuation.
Merge pull request #28 from lbl-srg/master

Update release branch with latest changes.
Added bug fix of pull request #27 which caused self._nPro to be disregarded.
Merge pull request #29 from lbl-srg/master

Added bug fix of pull request #27 which caused self._nPro to be disregarded.
Merge pull request #30 from lbl-srg/release

Update master with release
Updated CHANGES.txt
Merge branch 'master' of https://github.com/lbl-srg/BuildingsPy
Merge branch 'master' of https://github.com/lbl-srg/BuildingsPy

Conflicts:
	buildingspy/development/regressiontest.py