Problem: Editors like gedit and others will not recognize *.xml.in files as xml, so if opened there is no syntax highlighting making those files harder to read.
This commit fixes this by adding <?xml version="1.0" encoding="UTF-8"?> to all *.xml.in files in lp:compiz 

Serialization was a cool idea for handling the temp load/unload problem,
however the usecase these days does not often involve that in order
to justify its continued maintainence.

Fixed possible performance problem by changing 'cfs->filtersFunctions.size ()' to 'cfs->!filtersFunctions.empty ()' inside if statement