Minor fix for an uninitialized var
Place docs in @docdir@
Build a shared library by default
Minor whitespace cleanup in automake files
Slightly cleaner way to handle docdir subdirectories

This avoids overriding ${docdir} as given at the command line so it
won't be inconsistent in a few Makefiles.
Set autoconfig prereq to 2.60
Update gitignore to exclude distcheck output
Move bufoverrun test to libcheck
Add standard defines in case __UD_STANDALONE

Defines are required for uint16_t etc., size_t, and va_list in case of
__UD_STANDALONE on linux.  The stddef.h and stdarg.h defines would
otherwise come from stdio.h were it included.
Minor comment update
Merge remote-tracking branch 'upstream/master'

Conflicts:
	libudis86/types.h
Add entries in optable.xml for obsolete 8087 instructions FNENI (DB E0), FNDISI (DB E1), FNSETPM (DB E4), and FRSTPM (DB E5).  All but the latter execute (as NOPs) on modern CPUs.