Merge pull request #5 from Lascorbe/master

Merge Lascorbe/CocoaConferences
Update to 4/26/14
Add 360|iDev 2014 and 2015 dates

http://www.360idev.com/blog/2014/04/360idev-2014-and-2015-downtown-denver-august
Remove SecondConf, since there will be no more :disappointed:

https://twitter.com/secondconf/status/409012983600132096
Add CocoaConf 2014 dates
Add AppsWorld 2015
Merge pull request #17 from mrh-is/master

Update dates as of 4/26/14