Add gmail login (when adding an account)

Couple of bug/crashes fixes

Add loading accounts from a text file (the file should be located at the root of the SD card and named “pokeralert_accounts.txt”

The format should be: username password type

Example: my_ptc_username my_ptc_password PTC my_gmail_username my_gmail_password GOOGLE

Disclaimer: If Niantic Labs asks that to stop all PokeAert activities, PokeAlert will comply and the request will be fulfilled immediately

We new friends!