- #(fr 86) - Enhance handling of undefined macros to reduce the number
of
  follow-on parse errors.
- #(312) - Correct a bug involving missing include files due to 
  incompletely-specified include directories. Previously, editors would
  still show the include files as missing even after correcting the
include
  directories. Now, the editors show correct information.
Merge pull request #288 from mballance-sf/master

Bug fixes for 1.5.1