Updated InApp Billing API, which fixes some crashing bugs.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Improved floodfill optimizations by removing redundancies.

Booleans are automatically set to false, so filling them is unnecessary.
Also, both boolean arrays will contain the same number of elements, so
it makes sense to use one loop that iterates through both of them at
once instead of using two loops, each iterating through one array.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Removed unnecessary import.

This import was never used. It was intended to be used by a dynamic
database-path getter. This is because different devices may have
different database paths. However, a different approach to database
installation has been taken. Instead of copying the .db file to this
"dynamic" path (the path can vary by device), the database itself and
all database updateds occur through execution of DDL statements via
changescripts.

Thus, this import is not necessary now, nor has it ever been in the
past. It just happened to get committed.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>