link backend to frontend
Merge branch 'master' of https://github.com/sinkerplus/Actually

* 'master' of https://github.com/sinkerplus/Actually:
several front-end changes
add getPic.py
size of arrow
Merge branch 'master' of https://github.com/sinkerplus/Actually

* 'master' of https://github.com/sinkerplus/Actually:
  several front-end changes
  add getPic.py
  size of arrow