r1124
Merge branch 'master' of https://github.com/astaxie/build-web-application-with-golang into astaxie
修改了对应的错别字
new line
review 13.1md,13.2md,and 13.3md,updated some word
Merge pull request #132 from chenwenli/master

review three file for 13 chapter ,updated some word
修改错别字
修改单词拼写错误
Merge pull request #133 from Itachish/patch-1

修改错别字
Merge pull request #134 from Itachish/patch-2

修改单词拼写错误
Update 2.7.md

这里能在多解释解释runtime.Gosched()就好了，这一章感觉写的东西不够细啊。
Merge pull request #135 from xland/patch-1

Update 2.7.md
updated 11.1,11.2md
Merge pull request #136 from chenwenli/master

修正一些单词错误,减少语句罗嗦之处
Update 2.5.md
fixed  some errors in 12.2,12.3,12.4md files
fixed 12.4md one error
Merge pull request #138 from chenwenli/master

修正部分单词错误和汉字错误，重新修正语句描述
Merge pull request #137 from HoNooD/patch-1

Update 2.5.md 
Go-MySQL-Driver is now at GitHub

Moreover `keepalive` is now deprecated, since closed connections can now be handled automatically (even more comfortable ;) ).
So please also change line 15.