fix cache bug
add safemap and test
add Config.Int64 and Template add Runmode==dev everytime parsefile
changer version to 0.4
add some useful function

1. Router
2. SetSession/GetSession/DelSession
3. RenderString
4. str2html/htmlquote/htmlunquote
5. move the template Function to util.go
session

1. session move from astaxie/session to beego/session
2. support 4 type session
support websocket #20

add example chat
fix session cookies's expirded
add session's readme
fix router's bug when requestpath only have one character
fix multipart & add three useful function

c.GetString()
c. GetInt()
c.GetBool()
add GetFIle & enhance router
fix router's bug
fix multipart
version change to 0.5.0
word change to string
最新的中文文档，还在完善中
warn views can't find  when runmode is dev
beego default set GOMAXPROCS to NumCPU
add error show page