Merge pull request #46 from llh1/uat

Merge from development 1.1.1
Fix move_well method
Add specs for tube rack move action
Bump version to 1.1.2
Fix spec
Add comments
Merge pull request #47 from llh1/54682742_re_racking_tubes_in_s2_should_move_wells_in_ss

54682742 re racking tubes in s2 should move wells in ss
Merge from development 1.1.2