Update 0.4

Additions

• Added Mac and Linux versions. I'm counting it as an addition.
• Players are now able to read item descriptions by mousing over them.

Adjustments

• Enemies won't enter safe zones.
• Minor changes to the boss' chair.
• Minor changes to some UI colors.

Bugfixes

• The second swirly cloud attack that the boss does will correctly hurt the player.
• Enemies will correctly only move toward the player when close enough.