correctly restoring environ["wsgi.input"] after reading POST content
remove unneeded method cgi_field_storage()
Merge pull request #144 from geops/master

Fix for POST requests failing with 500
Added accept header.
Better check
PEP-8
tpazderka: EOL replacement in certificate read.
Change timeslack parameter in docs.
Merge pull request #145 from ddohler/master

Change timeslack parameter in docs.
Typos
Update install.rst
Merge pull request #146 from julienp/patch-1

Fix typos in install.rst
use NAME_FORMAT_URI as default fallback nameFormat for better compatibility with ADFS
Merge pull request #148 from geops/master

use NAME_FORMAT_URI as default fallback nameFormat in AttributeType_
MetaData redesigned

Added base class MetaData that defines common interface for any MetaData
handling class.
MetaDataStore can now use arbitrary class for Metadata handling.
The Metadata specification in settings has changed:

'metadata': [
    {"class": "full.path.to.metadata.class",
     "metadata": [(tupple, with, loader, arguments)]},
     ]
Updated tests to pass with the redesigned MetaData import
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/saml2/sigver.py
Merge branch 'MetadataStore'