Revise process of checking file

Don't disturb user if a file has not syntax error.
Show syntax error in popup instead sublime console.
put cursor to invalid line  
![screen shot 2013-12-20 at 6 47 47 pm](https://f.cloud.github.com/assets/484327/1791971/df223296-6996-11e3-944e-6bd953ff393b.png)