first-stage/PARSE/headFinderCh.h: fix minor typo
first-stage/PARSE/InputTree.C: don't use uninitialized value
Move Mac-specific settings into Makefile.mac from Makefile.
Use ESTIMATORNICKNAME=lbfgs-l1c10F1n1p2 to match the other current settings.
A Git .gitignore copied from .hgignore.
Tidied up .gitignore and add second-stage/nbest and tmp dirs.
Set LD_LIBRARY_PATH too.
Add a rule to .LIBPATTERNS so that SParseval will make.
Don't set standard make variables if they are already set.
index on BLLIP_FOR_MACOS: bd9be5c Use ESTIMATORNICKNAME=lbfgs-l1c10F1n1p2 to match the other current settings.
WIP on BLLIP_FOR_MACOS: bd9be5c Use ESTIMATORNICKNAME=lbfgs-l1c10F1n1p2 to match the other current settings.
Merge commit 'stash' into BLLIP_FOR_MACOS

Conflicts:
	second-stage/programs/wlle/Makefile
Seems to build and run everything (including SParseval and the
convenience scripts) on both Mountain Lion and Mavericks.
Merge branch 'BLLIP_FOR_MACOS' into BLLIP_ON_MAVERICKS

Conflicts:
	Makefile
	second-stage/programs/wlle/Makefile