Test+Fix user interface flow:
- Added permissions and application activities in AndroidManifest.xml
- Added category spinner and fix alignment in fragment_settings.xml
- Updated strings.xml
- Added category as 2nd parameter in new constructor in RecipeManager.java; updated dependencies
- Added All in Category enum and category array variable in Recipe.java
- Added Category in Settings.java
- Passed settings in instantiating UpdateFragment, and null checker in updateListOnUiThread() in RecipeListFragment.java
- Added category in SettingsFragment.java
- Added newInstance() in UpdateFragment.java for settings fragment argument
- Updated MySQLiteHelper.java, added ingredients and instructions table
- Only graphical flow is tested; Update functionality not yet tested.