LICENSE update
adjust logical when process got an uncaughtException event #262

Prevent process exit and print a stack trace when encounter
uncaughtexception if there is other listeners on `uncaughtException`
event.
Merge pull request #264 from perfectworks/master

adjust logical when process got an uncaughtException event #262
Merge branch 'master' of github.com:Unitech/pm2 into development
#259 #113
#96 - PM2_MODIFY_REQUIRE is already usable, but you can now overidde it by default via custom_options.sh file