Wordsmithing of root readme file for Screens.
Edits.
Wordsmithing.
Fixes to text formatting.
Wordsmithing for iOS project library readme.
Merge pull request #48 from ngaskill/docs-edits

Merge documentation
Merge branch 'master' into LMW-91-documentation-for-ddl-widgets

Conflicts:
	ios/README.md
LMW-91 Don’t use hard-wordwrap. Let’s rely on soft-wordwrap (cc @ngaskill)
LMW-91 “Important Note” section should be the same in all pages (cc @ngaskill)
LMW-91 Rename page to follow the same pattern
LMW-91 Add links to all widget pages (cc @ngaskill)
LMW-91 Add screenshot for “conform delegate” step. (cc @ngaskill)
LMW-91 Add screenshot for “connect delegate” step (cc @ngaskill)
LMW-91 Mac OS uses Unix slash. not Windows backslash (cc @ngaskill)
LMW-91 Rename bridge file
LMW-91 Renamed *Widget by *Screenlet