Add a JSON extension on all files saved in session.  Later, we should
give the user the option to save as .csv or .json.
Add CSV support.  Mirrors approach used by Java Desktop App and uses
existing approach to load images.
Got a basic upload working.  Does not handle the content correctly for
Shift_JIS (since JSON is supposed to be encoded with UTF-8.  )
Fix for #15
Merge remote-tracking branch 'origin/master' into dev

* origin/master:
  Prevent duplicate entries in questions list
  Add close button on dialogs
  Refactoring: Resolving problems with structure of project.

Conflicts:
	AndroidManifest.xml
	src/main/java/org/smilec/smile/bu/QuestionsManager.java
Creating feature to send summary results in an email
Merge branch 'bugfix' into dev
Add list of students with their results to summary
Sorting list of questions and students
Layouts activity_flow.xml/login.xml/save.xml not displayed as a row anymore
Adapting views for mobile format
Adding handler for toasted messages outside onCreate()
Reverting default IP server (strings.xml)
Implemented the Retake session
Merge pull request #20 from chrqls/dev

Bug "Login inconsistant across devices" fixed
refs #18 Change Answers text to Completed
refs #21 Don't finish() and don't remove the hide panel.
Fixes #24 Add the propery entity for UTF8 when we put or post json.
fixes #23 add the app version to the login panel and bump the release version to 0.2.10
[Issue 25] Adding a way to leave a comment to the teacher app