Update 2.30.157 - Cruise Missiles and Radar Jamming

New Unit "Cruise Missile": a long-range missile which can be launched from a cruise missile silo.

New Unit "Missile Ship": a ship which can launch long-range cruise missiles.

New Unit "Radar Jammer": able to reduce radar vision of enemy forces. Makes an area invisible to radar unless enough radar vision uncovers a hidden area.

New Unit "Jammer Drone": ditto structure, able to reduce radar vision of enemy forces. Makes an area invisible to radar unless enough radar vision uncovers a hidden area.

New Rock "Jammer Rock": reduces the radar vision of units in the vicinity.

EMP Droid: graphic slightly smaller.

Balancing: Airship 10% more expensive to build.

Build Queues: fixed the max. queues for some factories (limit was too low not matching what could be built).

Language: latest translations added - Thanks :-D

Maintenance: improved logging for string parser (debug instead of error).

Maintenance: time utility updated to ISO-8601 time (proleptic Gregorian calendar).

Maintenance: StringBuffer replaced with CharArray (inc. performance).

Performance: only updating audio volume when changed (~0.5% faster).

Performance: not calculating hash-code for objects returned to cache (~0.3% faster).

Performance: update for value lookup in hash map (~0.2% faster).

Performance: update for general I/O (improved via profile analysis).

Performance: improvement for string allocations (reduced allocations).

Bugfix: Cloud shadows weren't properly displaying for all clouds.

Bugfix: creating a multiplayer "AI Challenge" game didn't work (player spots error).