Update ReadMe

Version bump 4.0.0-beta.5

Version bump 4.0.0-beta.4

Change the demo apps to default to non-coloured logs, since plug-in’s…

… are disabled by default in Xcode 8

Version bump 3.5.3

Version bump, 3.5.2

Version bump 4.0.0-beta.3

Updated podspec, version bump to 4.0.0-beta.2

Version bump 4.0.0-beta.1

Version bump 3.5.1