Update Readme.md

Added commands info for Windows and Linux
Quote current path in case the working directory has a space in it.
Merge pull request #9 from jlaxson/master

Quote current path in case the working directory has a space in it.
Treat subprocess.communicate() output as data, not string

Comparisons don't work as expected when types are mixed (probably a
python 2 vs. 3 issue).
Use Popen’s cwd param to set directory and split cmd args to avoid shell
update Readme with information for Sublime 3 installation
Merge pull request #12 from allomov/master

Add information to README about installation to Sublime Text 3.
fix comparison for RVM not found
Merge pull request #10 from kindjar/master

python3 rbenv support
Merge branch 'master'