create readme.md in ./gulp

Describe all gulp tasks
Update README.md
Update README.md
Update README.md
Merge remote-tracking branch 'origin/master' into static
Merge remote-tracking branch 'origin/master' into js
Merge remote-tracking branch 'origin/master' into php
build dist
code shareblock clodse
Merge remote-tracking branch 'origin/js' into js
Merge remote-tracking branch 'origin/static' into static
Merge remote-tracking branch 'origin/static' into js
fix markup, fix js
fix css
merge static
add upload module
style opacity range
add opacity slider, fix gulp tasks
delete dist
Merge branch 'js' into php