Support Parse Bool with more diffrent values

Checks if index is greater than the length of the wildcards. #1580

ParseBool returns the boolean value represented by the string.
It accepts 1, 1.0, t, T, TRUE, true, True, YES, yes, Yes,Y, y, ON, on,
On,
 0, 0.0, f, F, FALSE, false, False, NO, no, No, N,n, OFF, off, Off.
Any other value returns an error.

fix conf load bug

Exceptions in controller methods

Exceptions in methods names should be changed according to controller.go

 template.go 的beegoTplFuncMap注释有误

template.go 的urlfor Func注释有误

simplify the implementation of splitPath in tree.go

DRY

golint all the files

beego 1.6.0 released

This reverts commit f70d2cc3.

some typo fixed