[iOS][FEATURE 33 - EDIT 3]Add Plus Button Link To How I Feel

- Feature #33: 'plus' icon in bottom right to link to 'How i feel'  https://docs.google.com/a/wirezy.com/spreadsheets/d/1L3XKrm3DVh_Kv01R-5NhFfp-tqcCLhNCI8F-DNvB_UQ/edit#gid=0
- Unit Test Case: https://docs.google.com/spreadsheets/d/1k-SLp2G9OQlW-h9w9bkLeQe8c1V6zcYMPhGF08GfvR8/edit#gid=1195364370
- Trello: https://trello.com/c/VZ9iwUJE/79-6-33-feature-plus-icon-in-bottom-right-to-link-to-how-i-feel

Updated! Define time move plus button to edge