Merge pull request #51 from lukaslueg/master

Fixed two tests, fixes for PyP
Add a couple notes about recent merges
use pypissh if available in setup.py
bump versions, notes for 0.8.1
pip is grumpy about symlinks it seems
add signature for 0.8.1. release
add note to use 0.8.1 instead of 0.8.0
first cut at Travis-CI
Bump versions so master doesn't build same distribution as 0.8.1
Exclude emacs backup files (issue #52)
Include LICENSE in manifest, and add 2013 to copyright dates (issue #53)
skip a bunch of tests that look for tor binary, to make travis-ci happy
add travis-ci build-status image to readme
Fix find_tor_binary() if bash is not the default shell