Move databases to library location on install
Move databases to library location on install

When PyOW is installed, the database files are automatically created and moved
to the site-packages (or dist-packages) directory for PyOpenWorm.

Permissions are also changed to be rwx for all users.

Helps #113 and #124


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kaustubhcs/PyOpenWorm,hnunner/PyOpenWorm,openworm/PyOpenWorm,gsarma/PyOpenWorm,openworm/PyOpenWorm,travs/PyOpenWorm,gsarma/PyOpenWorm