Merge pull request #2 from mhald/master

Added Module, Function, Line, Pid to popcorn log feed
Updated to use lager RAW events
Update rebar.config
get correct node_version during code update
get app_version in init/code change
Merge pull request #3 from georgeye/master

get node_version dynamically.
Update README.md
roll back for init
Update README.md
Merge pull request #4 from georgeye/master

roll back on init change.
filter out unwanted log
Merge pull request #5 from georgeye/master

Filter out unwanted log by level.
support for lager 2.0, and versioning the protobuffs packets
Merge pull request #6 from lookio/master

Adding support for lager 2.0 since this is current
protobuffs version bump
locking in dep versions
Merge pull request #7 from lookio/master

Locking in dependency versions
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/lager_popcorn_backend.erl
updated to match new lager API call
Both versions of the lager event call are supported for backwards compatibility