Clean the xml more

[chronicsilly]

I already do this with my xmls manually, but having it be automatic would be nice too.

An xml called "rodriguez-phase2" that looks like this:

<!DOCTYPE codename-engine-character>
<character sprite="rodriguez-phase2" icon="rodriguez-phase2">
	<anim name="idle" anim="idle" x="0" y="0" fps="24" loop="false"/>
	<anim name="singUP" anim="up" x="0" y="0" fps="24" loop="false"/>
	<anim name="singLEFT" anim="left" x="0" y="0" fps="24" loop="false"/>
	<anim name="singRIGHT" anim="right" x="0" y="0" fps="24" loop="false"/>
	<anim name="singDOWN" anim="down" x="0" y="0" fps="24" loop="false"/>
</character>

Would now look like this when saving (If pretty print is disabled):

<!DOCTYPE codename-engine-character>
<character>
	<anim name="idle" anim="idle"/>
	<anim name="singUP" anim="up"/>
	<anim name="singLEFT" anim="left"/>
	<anim name="singRIGHT" anim="right"/>
	<anim name="singDOWN" anim="down"/>
</character>

[chronicsilly]

Also added pretty print stuff that would compress the xml to one line

[chronicsilly]

^ the buildXML function does something similar but only for the node, not the anim nodes so yea