Issue #70: Added and tested --gz option
Merge remote-tracking branch 'upstream/master'
respect proxy on login
code cleanups and refactorings, moved util functions into a separate
module, also download the about json file
trim path parts instead of only the filenam (still a hack but should
crash less), bumped version
Merged upgrade to v1.5
fix syntax error and tweak help string after pull request merge
updated changelog
update changelog for pypi release
Not all courses have the -00x suffix.
See: coursera.org/db
Merge pull request #96 from zamabe/master

Correct behavior when dealing with courses which don't have an -00x suffix.
add a commandline regex parameter to select which weeks to download
use a comma sep list of ints to select weeks instead of a regex
Merge remote-tracking branch 'upstream/master'