Move date to body.

     Remove fractional seconds. Use readMaybe instead of read.
Add preceding context of unit to email.

        Fixes #3.
Comment interval in config, and make it match default value
Pick input interval over config interval
Rename variables and remove unneeded pragma
Renamed 'interval' to 'context_interval'.
Merge remote-tracking branch 'origin/master' into jkarni/issues/3

Conflicts:
	src/Process.hs
Merge pull request #15 from zalora/jkarni/issues/3

Add preceding context of unit to email.
Fix utcTime change issue.

        One branch assumed milliseconds precision, the other removed it, so
        merge caused journalctl to not be able to parse our date.
Merge branch 'origin/jkarni/issues/3'
tweaked license file
Filter out COREDUMP.

        Fixes #14.
add instances back
Merge pull request #18 from zalora/jkarni/issues/14

Jkarni/issues/14
nix: filter src
fix compilation for mime-mail >= 0.4.6
fix travis config