jira-changes.py: generate content for CHANGES.md from jira filter
Populate 4.4.1 and 4.4.2 changes
CHANGES.md: fixed in 4.5.0 initial list
CLOUDSTACK-7482: removed listAll from UI for API call not supporting it, still some left
cleanup around seemingly impossible cast

- changed type parameters on details map in CreateSecondaryStagingStoreCmd - <String, String> was misleading since it can not work with a string value and it is never a string
- introducing the type parameters allowed some simplifications in getDetails()
- added unit test

Signed-off-by: Laszlo Hornyak <laszlo.hornyak@gmail.com>
Signed-off-by: Pierre-Luc Dion <pdion891@apache.org>
CreateSecondaryStagingStoreCmdTest.java: add license header