Removed demux-specifc methods; those are just readers
Fixed typo and added return type
Updated for #start, #stop, #stopper
Don't create a file for #stop spec
Added specs for #add_writer
Updated docs and added specs for #remove_writer
Added accessors for key attribs

This is necessary, really, for allowing users to be able to remove
writers from a reader; they need these methods availalble to help in
differentiating from other readers of the same type.
Some short class docs for now
Added specs and docs for #add_seam
Added specs for #new_writer_from_uri
Renamed main_callback to core_stopper_callback
Init @starter to nil to avoid warning
I don't think start should be called in init
Init @stopper to nil to avoid warnings
Don't start on init
Ignore atlassian plugin info
Added accessor for file_path
Added spec for #start
Added specs for FileReaderConnection
Cleaned up warnings