updates to fpc tables
Merge remote-tracking branch 'juniper/master'
Set pkg_add to return False on failure

pkg_add was returning a string on failure which was breaking other functions.
We do need to come up with a proper way of handling that error message in the future.
bump for 0.3.0
Merge pull request #238 from jeremyschulman/master

bump for 0.3.0 release
Merge pull request #237 from shermdog/230

Set sw.pkgadd to return False on failure
bump for 0.3.1
fixed setup.py bug
Merge pull request #239 from jeremyschulman/master

fixed setup.py bug
Added base tests for OpTable and CfgTable
Factory elements are now started and total coverage is 89%