IPF-63: IN-PROGRESS

- added new welcome screen tutorial with two slides
- removed old core data code
IPF-63: IN-PROGRESS
IPF-63: IN-PROGRESS

- updated Welcome tutorial for iPhone
- need to add screen for Documents
- need to add iPad sized Welcome tutorial
IPF-63: IN-PROGRESS
IPF-63: IN-PROGRESS

- added remaining slide to welcome instructions for iPhones
IPF-63: IN-PROGRESS

- fixed issue with paging control and swiping through instructions
IPF-63: IN-PROGRESS
IPF-63: COMPLETE
Merge branch 'feature/IPF-63' into develop