Add missing parameter separator in URL for mset().
add __getitem__ to CObject to support slice operator
added CObject.__nonzero__ for nonempty=truthy
Fix URL separator issue
Fixes to proxy handling with config load/save and xnatPass login
Added support for Overwrite, and Extract options when using the: put, put_dir, and put_zip functions of Resource.   Overwrite works, but Extract=False seems to be ignored by xnat currently (Xnat always extracts). Leaving option in so when XNAT is fixed this will work.
Merge pull request #40 from SyamGadde/master

attrs.mset() bug
Merge pull request #44 from karchie/master

add __getitem__ to CObject to support slice operator
Merge pull request #45 from pyxnat/win-url-sep-fix

Fix URL separator issue
Merge pull request #47 from dommcintyre/fix-proxy-config

Fixes to proxy handling with config load/save and xnatPass login
Cleanup the overwrite / no_extract feature and updating notes for 0.9.5.
Merge commit 'aa21b6c3f278658300ea732c6acc4d4ffb6e9165'
Merge pull request #48 from DavidJJ/master

Added support for Overwrite, and Extract options when using the: put, pu...
Merge branch 'master' of https://github.com/pyxnat/pyxnat

Conflicts:
	pyxnat/core/resources.py