add mandril bundle
improve mandril integration
improve mandril integration 2
refactor newsletter send 1
refactor newsletter send 2
refactor newsletter send 3
refactor newsletter send 4
refactor newsletter send 5
refactor newsletter send 6
refactor newsletter send 7
add async process newsletter send command execution
add async process newsletter send command execution 2
add async process newsletter send command execution 3
Merge branch 'devel'