WIXBUG:4513 - Fix condition keyword detection in modularization regex.

The regex in the modularization of conditions would incorrectly
recognize keywords that were part of property names. For example, the
property "NOTEWORTHY" would be parsed as the keyword "NOT" and the
property "EWORTHY". This fix ensures there is whitespace after keywords.
Merge pull request #148 from robmen/bug4513-modregex

 WIXBUG:4513 - Fix condition keyword detection in modularization regex.