Fix Issue 2146 "Illegal entry in bfrange block in ToUnicode CMap" (issue 6399046)

[graham]

wow, awesome work!


http://codereview.appspot.com/6399046/diff/1/Documentation/common-macros.itexi
File Documentation/common-macros.itexi (right):

http://codereview.appspot.com/6399046/diff/1/Documentation/common-macros.itexi#newcode16
Documentation/common-macros.itexi:16: % code stolen from Heiko
Oberdiek's `ifpdf' package
sorry to nitpick, but could you use the word "copied" instead?  there's
no benefit to waving a red flag to anybody doing casual greps and
looking for trouble.

http://codereview.appspot.com/6399046/diff/1/configure.in
File configure.in (right):

http://codereview.appspot.com/6399046/diff/1/configure.in#newcode66
configure.in:66: _NCSB_SOURCE_FILES_=""
what's the convention for leading _ in names?  I havent' encountered
this before.

http://codereview.appspot.com/6399046/diff/1/scripts/build/lys-to-tely.py
File scripts/build/lys-to-tely.py (right):

http://codereview.appspot.com/6399046/diff/1/scripts/build/lys-to-tely.py#newcode69
scripts/build/lys-to-tely.py:69: %%%% code stolen from Heiko Oberdiek's
`ifpdf' package
ditto

http://codereview.appspot.com/6399046/