Modified app styles (excl. Dialogs)
saved with custom theme
draw dialog now uses inmite Simple Dialog library
also tidied up list view on ChangeNamesFragment
set light theme for ListView in ChnageNames
added support for a styled input dialog

created MyDialogFragment class to display input dialog

STILL TO DO:
 - Edit text colour
 - Get name from EditText
 - Setup negative button
forgot to include MyDialogFragment in last commit!
additional customised dialogs, plus some repackaging
Add .gitignore and gradle wrapper to src control
Merge branch 'styling' of github.com:fifersheep/Names-in-a-Hat--Android- into styling
set up styled dialog for "edit classroom"
set up "delete classroom" stylized dialog
fixed dialog for delete classroom

the dialog had no positive/negative buttons
tweaked dialog message
added styled dialog for editing pupil name
added styled dialog for deleting pupil
added styled dialog for pupil exists
fixed bug with edit class dialog

bug showed wrong dialogs when class existed