Updated task lists and use case descriptions with texts exported from
OSLiC 0.99.2

Updated views.py to reflect the use of SPDX license keys.
(Apache-2.0 instead of ApLv2, etc.)
BUGFIX: Matrix requests fail for all '4yourself' use cases with a python
error.  This is caused by views.py, which sets up a translation only for
the cases form=='sources' and form=='binaries' but forgets about
form='any', causing an access toan uninitialized variable later on.
Added venv to .gitignore
Merge branch 'matrix_request_form_bug' into branding

Conflicts:
	oscad/locale/de/LC_MESSAGES/oscad.po
	oscad/locale/fr/LC_MESSAGES/oscad.po
	oscad/locale/oscad.pot
Updated task lists and use case descriptions with texts exported from OSLiC 0.99.3 (fixes use case names)
Updated task lists and use case descriptions with texts exported from OSLiC 0.99.3 (fixes epl license name)
Bugfixes for OSUC-05S description and several EUPL use case mappings
Removed french locale from configuration
Fixed wording and translation for several sections in the results and
internal_use* templates.