4.2.3 Release 

Update to rtw (#464) 

Bump to non-preview version 

Update build number to 4.2.0-rtw 

Update OAuth endpoints #327 (#380) 

Toggle versions for final 4.1.0 build 

Bump patch version to 4.0.1 

Update certificate id 

Remove empty lines for stylecop 

#45 Remove locks for metadata retrieval