Removed pytz from requirements.txt and added pytz>=2013b to setup.py.
This will enable OWSLib to be installed with pip 1.4+ without resorting
to the '--pre' flag
Merge remote-tracking branch 'upstream/master'

Conflicts:
	requirements.txt
Added request timeout as an optional parameter for getfeature call for
WFS versions 1.0.0 and 1.1.0 (version 2.0.0 already had this)
Remove old pytz version workaround from setup.py
Added timeout to constructors for WFS classes created by WFS factory
Merge pull request #199 from selimnairb/master

Add optional timeout parameter to getfeature for WFS 1.0.0 and 1.1.0