Delete move/pre-move/post-move hooks, these hooks are no longer needed.

Remove move/pre-move/post-move hook references

Mcollective cleanup: remove methods and references related to move, pre-move and post-move.
Gear Move changes: Keep same uid for the gear When changing the gear from one district to another.

Added district test case: Tests reverse_uid with preferred uid logic

Bug fixes
Change 'allow_change_district' to 'change_district' and remove warnings when target server or district is specified.
Fix start/stop carts order in move gear.
Merge pull request #1959 from pravisankar/dev/ravi/card-537

Merged by openshift-bot