Trying to decide whether an option should be an int or double after
discarding the differences between "1.0" and "1" simply isn't possible,
and even if an option was initialized correctly, if it was changed to a
round number it could get written as an int and break later.
Also convert cajun to tabs because three spaces to indent is terrible.
Originally committed to SVN as r6018.
Remove cajun includes from all public headers and the precompiled header
Add a pile of missing standard library headers used in multiple files
to lagi_pre
Originally committed to SVN as r5452.
