deposit: WTForms version to be <2.0

* Fixing WTForms to <2.0 as Flask-WTF doesn't support it yet.

* Updating Flask-WTF to 0.9.5.

* Updating WTForms-Alchemy to 0.12.4.

* Fixing the build where _unset_value was not found.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
global: kwalitee fixes in invenio.testsuite

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
base: eval is evil

* Using ast.literal_value instead of eval to parse user provided values.
  Safer and more reliable (bool("False") -> True)

* Removing the checks that the new type corresponds with the known type
  for the value.

* Adding some tests and invenio.base to the base set of packages.

* Using sets for the packages list to be tested.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
global: to be removed.

* lorem ipsum dolor sit amet.

* travis travis travis...

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>