Description of problem:
Attribute changes in DocBook 5 require reworking the profiling code.

Currently profiling can be done on lang, arch, or condition, for DB5 we should support all the "effectivity" attributes

See http://www.docbook.org/tdg5/en/html/ref-elements.html#common.effectivity.attributes

replace contion.arch/lang with a new parameter, 'profiliing' that accepts attribute=value pairs.

e.g.

profiling: "condition=enterprise arch=x86_64"

Consider allowing multiples.

e.g.

profiling: "condition=enterprise arch=x86_64 arch=ia64"

Consider allowing boolean logic.

e.g.

profiling: "condition=enterprise&sme arch=x86_64|ia64"