Changelog v0.451b

The game was re-built for the new version of Unity engine. As a result

• performance was increased

• quality of render was improved

• the problem with the new version of OS X was solved

Ingame video quality settings were added

AI was improved

The second level was rebalanced completely

Levels 1,3 and 4 were rebalanced a bit

Some small issues with UI were fixed (and some were added probably=)

Other fixes