Merge pull request #36 from Masterkatze/master

url_title plugin update
Merge pull request #37 from Masterkatze/master

url_plugin update and some other fixes
replace raw message passing by gen_server:cast
Merge branch 'master' of github.com:taptap/iris
update ulog
fix
switch logging to lager
switch logging from ulog to lager
switch commands and plugins logging to lager
update Makefile
add deps to app config
add gitignore to rel
add sample reltool config
update rel/.gitignore
add log to gitignore
move deps starting to iris.erl
fix lager logging
add lager credit
fix lager credit link
replace homegrown app config by standard OTP one