Version 0.3.1 - Minor changes and bugfixing

** CHANGELOG (v0.3.1): ** · You can now preview the range of a tower that will be placed on top of a Range Obelisk before placing it. · Tower gems are now shown in tower tooltips (displayed by pressing ALT). · Bomb of Light base range was lowered from 3.5m to 3m to improve accuracy. · Bomb of Light range upgrades were removed. · Added Big Bomb of Light, with a 5m explosion radius (unlockable through the upgrades menu after defeating the Totemic Mushroom). · Fixed a bug that allowed ground towers to shoot at the Fairy Bee boss. · Increased the armor restored by the King Orc in Expert Mode. · Changed the way fog is detected to reduce the chances of having seemingly visible tiles where building is not allowed. · Resource gatherers now search for another available resource if their current one is destroyed by a Bomb of Light. · The gem UI no longer disappears when upgrading a tower. · The tower's experience bar now turns orange when it reaches 100%. · Some upgrade descriptions have been revised to make them easier to understand. · Health bars and other UI elements now have the proper size on 4K configurations.