Make 'fold_psrfits.c' work with 4-bit input data.
Merge branch 'master' of https://github.com/plazar/psrfits_utils

Conflicts:
	fold_psrfits.c
Merge pull request #4 from plazar/4-bit_fold

Added ability to fold 4-bit PSRFITS
Added ability to pass arbitrary filenames.  Kept basefilename sequential capability, though.
Fixed file parameter initialization issues
Fixed file name issues -- not perfect, but it works
un-commented removal of temp file
Merge remote-tracking branch 'scott/master'