Changes

Make patch stopwatch local
It's not needed outside of ProcessPatch(), which contains everything it 
needs to time
 (commit: 5a5b3e7)

Make useCache local
Really only needed for a few lines in ProcessPatch()
 (commit: bedb00c)

Make Patch an object
Saves having to parse things multiple times, error/info messages can now 
show the original name (except NEEDS, will be worked on).  More 
functionality will be added to this class in future commits.
 (commit: 5ab92f6)

Simplify a bit
 (commit: a551c2c)

Extra semicolon
 (commit: f96c333)

Extract interface for PatchList, modify PatchExtractor
PatchExtractor did too much at once, it shouldn't enumerate and extract 
at the same time (still some work to be done there...).  PatchList now 
has a clearer interface and obscures more of the details - iterating 
through patches is now handled by it rater than PatchApplier
 (commit: 83288b5)

Allow null value in wildcard match
Allows for instance :HAS[#someValue] instead of :HAS[#someValue[*]]
 (commit: cccdc85)

Extract node matcher
Will eventually be useful in modifying nodes too, but not without some 
refactoring.  For now it is only used on root patches.
 (commit: 3698d7c)

Extract IPatch interface, split up root patches
 (commit: 5d77647)

Fix tests depending on line endings
Since we're already asserting on the ParamName, we can trust that the 
2nd part of the message will be there and not test it.
 (commit: d331d9e)