Merge remote-tracking branch 'upstream/master'
Method returning array of custom flags
Method storeFlags supports custom flags
Merge branch 'feature/custom-flags' into develop
Method to store cusotm flags is separate from the original one
Fixes in storing custom flags; possible to append new messages with custom flags
Default NULL value for custom flags in append and storeFlags function arguments for backwards compatibility
Merge pull request #572 from michalkalis/master

Added method to store custom flags and a property to access custom flags
optimized custom flags
Update MCOIMAPNamespace.mm
Update MCOIMAPNamespace.mm
Fixed base64 encoding
Added Set to Obj-C bridging
Fixed disconnect operation behavior when no connection is established
Fixed some IndexSet operations
Merge pull request #575 from lgarbo/master

Update MCOIMAPNamespace.mm
fixed MCOIMAPCapabilityOperation header guard macro
Merge pull request #579 from marcopifferi/master

fixed MCOIMAPCapabilityOperation header guard macro
added removeLastObject()
Render text as HTML