IOS_FEATURE_33_Add_Plus_Button_Link_To_HowIFeel

Feature #33 : Add '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
-Trello: https://trello.com/c/VZ9iwUJE/79-6-33-feature-plus-icon-in-bottom-right-to-link-to-how-i-feel
-Testcase: User story 2 in tab "All Page".
https://docs.google.com/spreadsheets/d/1YXhKNi3YODCGg-Fk817K_Jk7gmM0Nhkie6RWptWEJww/edit#gid=1058557822