全局变量AutoRender为false时，run时不再编译模版；针对开发模式下，每个请求渲染模版时支持单独编译当前请求相关模版

fixed mux1 to mux

Added MapGet template func

Update router.go, add Flush for responseWriter

增加编译模版函数BuildTemplate可变参数，使之支持单个或多个模版的编译，同时针对开发模式，每个请求只编译当前请求相关模版，不再每次请求都编译全部模版

AutoRender为空，Controller.Render()不再执行，故无需编译模版

Fix #1269 extract godoc to own file.

typo fixed

registor==>register
innner ==> inner

Fix #1271 Add description from docs on beego.me to README
and also add same description to godoc

set DoRotate fname like xx.2013-01-01.2.log

Fix for #1256. Indent the code sample lines properly.

fix fname,by extension to identify the file type on mac and windows.

Fix #1237

Update validators.go

Support virtual operators paragraph 170！

Package description uses same text as the README.

fix FilterHandler crash issue 

Filter Handler will crash with error assignment to entry in nil map , params from function Tree.Match() maybe nil.

pull from stable

Revert "Revert "fix multiple filters execute issue""