Updated DBAdapter

Updated DBAdapter with an ArrayList instead of a String vector and from
query to rawQuery when looking for all pharmacies with a drug_id.
Updated PharmaciesActivity

It is now using an arraylist with choice-objects instead of a vector
with choice-objects.
Updated PharmacyArrayAdapter

Changed from Choice-vector to ArrayList with choice-objects.
New class Pharmacy

With all columns like in the pharmacy table.