Merge pull request #4 from colorpeach/master

add some icons glass etc.
Merge pull request #5 from colorpeach/master

update icons folder-close etc.
Merge pull request #6 from colorpeach/master

finish 40 icons
Merge pull request #7 from colorpeach/master

add border
add icons task etc.
Merge pull request #3 from tanxuewei/master

add icon tasks etc