Whitespace character separates list values of the mako.directories directive
Update contributors list
Merge avanov/pyramid_mako into feature.mako-directories-as-list
Add tests for space in mako.directories
Merge branch 'feature.mako-directories-as-list'

Thanks to @avanov, this change allows the mako.directories variable to
be listed in the .ini file as space seperated variables.

Closes #18