Merge pull request #21 from hcilabasu/RishabhAudreyBranch

closed #9 and #10
Added farm and house epubs to control condition project. Added error checking in case farm and house epubs are not found.
Merge remote-tracking branch 'origin/controlCondition' into RishabhAudreyBranch
#22 and #23 User can only select the correct subject. Ungroup and check step types have been implemented. Group type works, but there is no transference. Move type only works for moving an object to another object.