implement nested answers
add message when loading data from server
implement save checked value to data storage
add condition to invisible nested icon
Merge branch 'master' of github.com:dst-hackathon/socialradar-android

# By kaotangP (5) and opal charoensit (5)
# Via kaotangP (2) and opal charoensit (2)
* 'master' of github.com:dst-hackathon/socialradar-android:
  Add a main menu.
  Fixed LoginActivity issue happened from a different workspace.
  rearrange layout for signup screen
  Correct the LoginActivity path and title.
  Correct the class name of SignUp Activity.
  create registerInfo model for sign up
  Add LoginActivity with layout, update AndroidManifest to add a LoginActivity, update strings.xml and add images and rounded styles.
  move SignUpActivity to activity package
  Add sign up button and password match check
  try to save image after taken from camera but it's not working yet