Added Usage help, allow a custom config-file, provide better feedback
with unable to read logs or write to media directory. Fixed log parsing
to only look for pairing success or failure after most recent remote
discovery to allow repeated pairing attempts (possibly with different
remotes). Better timeout handling, especially as FreeBSD has a delay
in processing the pairing file.
Before the fix, a log entry for ‘Foo’s iPhone’ would be parsed as
originating from the device “Foo”. I have changed the matching to
include the parenthesis opening after the closing single quote.
Name of remote in pair.remote was "-e $remote"
Log: [2015-02-26 21:00:16] [ LOG] remote: Remote '-e remoteXX' not known from mDNS, ignoring
Removing "-e" option works as expected.
