Create app error
Changes on test data

-different organisation/some additional cases
Location tests

-better organisation
-filled some empty cases
Tear down db at beginning

-In case an error comes up there are remnants in the
db(final tear down not called)
Rooms tests

-Organized tests
-Fixed and filled some non-working cases
Using proper assert expressions

-Removed obsolete funtions
-Some pep8 fixes
Rooms tests

-Added several new functions
Test data changes

-removed data not used
Dummy group feature
Test db initialisation changes

-groups and users configuration(dummy)
requests version
Typo
Remove some references to sqlite