Code Quality: fixed several Sonar issues (no functionality change)
Code Quality: removed some unused memory management functions (no functionality change)
Code Quality: fixed various Sonar violations (no functionality change)
Code Quality: fixed more Sonar violations and turned some warnings off (no functionality change)
InMemoryTileCache size/AndroidUtil: made the in memory tile cache a bit smaller (remove ceil op), for less memory use.
Code quality: fixed some sonar violations, no functionality change