MessageIcon.scala:
fix regular expression in nicknameStules
now it should label nickname color correctly when using avatars
JustinSetting.scala:
make port option a not null input
make port option only accepts digits
include PircbotX 1.9 sourcecode
in PircbotX 1.9, it cannot handle irc raw message begins with " "
(a space followed by rest of the irc raw messages)
so we decide to modify it

src/main/java/org/pircbotx/PircBotX.java:
handle raw messages begin with " " rather than ":"
(discard the first " ")

build.sbt:
change dependency to include the modified PricBotX

README:
add PircBotX information