Fix regression with FlxText regarding the "moves" property.

By default any FlxText was able to move, but some change we did changed that. We explicitly set "moves" to false, which made all FlxText to stop moving unless otherwise specified.

I removed the "moves = false" from FlxText's contructor and everything is working as before.
Fix wrong documentation about FlxObject#moves property.

FlxText#move defaults to true, to the docs were wrong.
Forgot to mention FlxText#moves defaults to true.
Merge pull request #180 from Dovyski/regression-fix-FlxText

Fix regression with FlxText regarding the "moves" property.