remove function define
Update Lesson12Board.m
Update Lesson12Board.m
fix parentBorad.signal bug
Merge pull request #39 from qfish/master

Fix parentBoard bug
Update UIColor+BeeExtension.m

Fix String to Hex
fix md5 encode (32bit)
fix the bug when you create board with xib
fix bug when use some webserver
Merge pull request #40 from ilikeido/master

fix NSString MD5 coder
Update README.md
Update README.md
Update README.md
Update README.md