adds channel interceptor
improves interceptor priority handling
passes intercept_method() to intercept function
adds missing interceptor calls
merge default into bug25817
moves the expand_* functinos to happen before handle_method
refactors channel interceptor
merge default into bug25817
handle interceptor exceptions at the channel level.
refactors intercept_method error handling
fixes handle_expand_shortcuts
basic.publish performance degrades if called with intercept_method

./runjava.sh com.rabbitmq.examples.PerfTest -y0 yields around 75k msgs/sec

without this change it yields 62k msgs/sec max

and that’s without any interceptor registered
merge default into bug25817
passes the right argument type to rabbit_channel_interceptor:select/1
renames handle_expand_shortcuts to expand_shortcuts
expand_shortcuts clean up
checks the interceptor returns the right method
Verticality
fixes broken qpid tests
Cosmetic, inline.