Add .gitignore
Merge branch 'master' into develop
Modify .gitignore
* Add login.sh
Add a new file upload.sh
modified:   upload.sh
* add delete mode to rm the directory
Install bootstrap
Change bootstrap less/variables.less
* @grid-columns:      12 -> 60
* @grid-gutter-width: 30px -> 20px
new file:   index.php