Merge branch 'release/0.8' into stable
enable source map generation if desired through LESS_LINE_NUMBERS parameter
removed debug print
Merge branch 'master' of https://github.com/mcfletch/webassets
Fix #212 UglifyJS filter EOF error when accepting data from STDIN
Explain UglifyJS changes in comments.
This is the output of python-modernize.

python-modernize -w --compat-unicode .
Fix some obvious things modernize doesn't do.

Like urlparse imports, basestring references, metaclasses etc.
Fix StringIO imports, views/iterator access, cmp.
Fix some unicode issues.

This assumes a unicode string as the internal format. Filters will receive a BytesIO.
Close file properly in test framework.

Gets rid of hundred of warnings.
Port ExternalTool metaclass syntax.
Fix more StringIO imports.
Fix nose yielding classes on Py3.

This seems to be this issue:

http://stackoverflow.com/questions/15281881/nose-generator-for-testcase-based-classes
Making the CompassConfig class work with more ruby types.
the CompassConfig class used to work with string and list types
but not with hashes, boolean and symbols types.
The options and possible value types can be seen here http://compass-style.org/help/tutorials/configuration-reference/
Add option for extra arguments to lessc

Conflicts:
	src/webassets/filter/less.py
Merge remote-tracking branch 'fabiomcosta/master'

Conflicts:
	tests/test_filters.py
convert None to bool before hashing, fixes #227
Merge branch 'master' into python3

Conflicts:
	src/webassets/filter/compass.py
	tests/test_filters.py
Assortment of Python 3 work.