Merge pull request #1374 from affektive/fix_sub_requests

Fix sub requests #1339
Added manager notes section to time off requests. Closes #1406.
removed show jbuilder;closes#1437
Merge pull request #1442 from affektive/1437

removed show jbuilder;closes#1437
more realistic admin note
Up and down migrations
Merge pull request #1440 from affektive/time_off_reason

Added manager notes section to time off requests. Closes #1406.