Added CreateField<TField> that converts to the target field type. This enables setting properties programmatically.
Fixed AddContentTypeToList by reducing code to call existing methods
Replaced SecureString creation with existing code method.
Merge branch 'master' of https://github.com/OfficeDev/PnP.git
Consolidated CreateField method to have one base internal method.
Marked obsolete methods to not show in intellisense
Merge branch 'master' into dev

Conflicts:
	OfficeDevPnP.Core/OfficeDevPnP.Core/Version.txt
Updated the BindFieldsToTermSetsFromXMLFile and BindFieldsToTermSetsFromXMLString methods + did re-order methods + lots of comment updates
Renamed to follow server cmdlet naming
Fixed issue with enumerating apps
Renamed to follow server cmdlet naming standard
Changed namespace
Added resource string
Added check if file exists before trying to check it out
Renamed cmdlets
Updated changelod
Moved readme.txt to readme.md
Moved documentation to MD format
Documentation updates to align the the base readme.md template
Small changes to MD documentation to fix syntax highlighting