Rever grouping by skel.

Since we get whole data in one message it makes no sence to create new
processe for reduce workfow.
Introduce `fun` for easier editing.
Squash pipiline to one process.
Merge pull request #6 from ParaPhraseAGH/skel_workflow_squash

Skel workflow squash
extracted skel_workers param to config; updated test scripts
Merge pull request #7 from ParaPhraseAGH/extract_skel_workers

Extracted skel_workers param to config files
minor fix in the logging system
added a basic .travis.yml file
Merge pull request #9 from ParaPhraseAGH/travis_introduction

added a basic .travis.yml file
Update README.md

(added Travis CI badge)
Fix fetching config files

The config files paths were hardcoded as "etc/<file>" which was causing errors when emas was ran from another directory
removed migration from behaviours() and meeting_function()
removed migration from behaviour_function()
removed migration from behaviours() and meeting_function()
removed migration from behaviour_function()
fixed invalid merge (added a function export)
fix a previous merge
Merge pull request #10 from ParaPhraseAGH/migration_hiding

Migration hiding
introduced logger.erl for logging count stats
Added funstats handling to the skel_main module