Implent encryptBody and add some dummy callbacks
The old encryptSelection is now split up into encryptInspector and encryptSelection. encryptInspector accepts flags to control it's behavior. * src/gpgoladdin.cpp (GetIDsOfNames, Invoke): Handle command callbacks * src/ribbon-callbacks.cpp (encryptInspector): New. More general version of encryptSelection. (encryptBody): New. Calls encryptSelection with body flags. (addEncSignedAttachment): New. Dummy. (decryptBody): New. Dummy. * src/ribbon-callbacks.h: Add new command ids