Revert "Issue #39 , Add Gemfile.lock"

This reverts commit fe3e583a5dcab18fc8e2811f2cfd91111bf96abf.
Revert "Merge branch 'C2_abuali_tag_autocomplete' into C3_Marwa_39_SubmitEditIdea"

This reverts commit 1aef6be70e602ea6ed90f04785135ab608156fb6, reversing
changes made to 3f2b1e0eaf74e8e004040fce22cb64313eb2aed8.