Added prepared statement for imagerecord path query
Updaed eclipse project to use gcc 4.8.3
Fixed incorrect namespace
Prepared queries are created on startup
Fixed ImageRecord by path query
Clean up prepared queries when database object is destroyed
Replaced ImageRecord query with prepared version
Moved creation of prepared statements to correct function
Replaced normal query for Imagerecord with prepared version
Added catch clause for adding records
Fixed not using pointer by reference
Query parameter is now overwritten
Created prepared statement for path query
Replaced path query with prepared version
SHA query by path now uses prepared statement
Added prepared query for Hash query with sha256
Replaced normal query for Hash by sha256 with prepared statement
REFACTOR renamed get_hash_with_sha_query to get_hash_query
Added prepared query for hash query with pHash
Replaced pHash query with prepared version

Closes #13