[pad] Patch author as argument for append_patch, renamed "apply_diffs" to "apply_patches" and "process" to "append_patch", removed pad_id attribute from connection (it's provided by pad.note.pk attribute)
atomic update of the note content in apply_patches()
PadTCPConnection.ready property
Apply patches in connection close
[pad] misspelled word
[pad] added missing import for User