Fixed version comparison while trying to determine source url
Merge pull request #29 from bhang/master

Fix for #28 - use pkg_resources.parse_version to compare versions
added nodeenv dir into .gitignore
fixed #26 (double prompt inside virtualenv)
added test2 into Makefile
0.6.1: actualized CHANGES/AUTHORS
Skip stand-alone npm installation by default

Node.js has included npm for a while now and it makes little sense to
install it separately by default. Hence, --without-npm has been
changed to --with-npm along with the related logic.

Associated parameter 'sanity checks' that don't make sense anymore
have been dropped as well.
Small changes to parameter name and description wording
Use strip() with --requirements instead of replacing just the newlines
Add working options for running Make instances in parallel

This removes the use of the non-working JOBS environment variable and
passes the arguments -j/--jobs to make directly. Additionally, the
Make option --load-average is now also supported.
fixed version cmp before make decision about npm installation
0.6.2: actualized version/CHANGES/AUTHORS. fixed #30
0.6.3: fixed # 31. env creation with no params is no longer broken
added some tests
actualized CHANGES
fixed type in CHANGES
Python3 compliant chmod call
Python3 fixes
Merge pull request #32 from alexcouper/master

Python3 compat
0.6.4: fixed #32, add python3 compatibility