[dist] add note to restart memcached after database migration.
[api] reset cache of project/package meta xml also in failure case when write to backend failed
[api] add a broken test case for later investigation

Found a very strange API behaviour while working on the webui test
suite. The bug is not an easy one to fix, so I commit a $BROKEN_TEST
[webui] port another test to capybara
[backend] Add support to define package support states and create .kwd files for kiwi
[backend] fix merging of supportstatus from multiple groups.
[backend] fix syntax for older perl
[api] fix deletion of repositories when linking repositories have multiple path elements (bnc#792430)
[api] do not log passwords
[api] one more validated model
[webui] fix problem 50bca675bb838900080000b8
[api] rely on a fixed xmlhash to convert XML into UTF-8
[api] fix error code with missing command parameter and fix typo in generic error code reporting
[backend] simple smoke test for support status generation
[api] cleanup test code
[api] add aarch64 to xml schema file
[api] cleanup multiple respositories in one project only for local repos. We can not have a uniq key therefore unfortunatly.
[backend] support pubkey replacement in signiso
[backend] implement pubkey replacement in kiwitree case
[api] test invalid review state changes