Another Fix to #2263

resolves #2291, introduces AndNotCond/OrNotCond to orm.Condition

typo fix in comments, Getfiles-->GetFiles

Fix xml.GetSection() function which causes a panic

Fix http body may not be closed

beego/session: return proper error when session is not found

Parent errs was returned instead of err which is returned from the last
statement.

Update db_mysql.go instead of db.go, in order to avoid affect other database.

swagger: add 'Default' for Parameter

Rework getFlatParams for time.Time

修复windows上app.conf中include其他配置文件时找不到文件的BUG

Name fix

HTTPOnly Configurable

fix log func call depth bug

add GetUint(8|16|32|64) to controller

Default values

fix to advice in #2187

httplib add CheckRedirect

Clear BConfig.Log.Outputs's default "console" while user has set "LogOutputs" in config file.

Emailer : Should use config Username only if no From is provided.

Should fix the case where Username is not an email.