Minor update and fixes to D highlight support.
Highlight .c++, .hh, .ipp, .moc and .inl
Merge pull request #4 from likema/master

Highlight .c++, .hh, .ipp, .moc and .inl
Merge pull request #3 from ibuclaw/dsyntax

Minor update and fixes to D highlight support.
Some README updates.

Convert to Markdown for nice display on Github.  Link to the current home page
and remove stale link to documentation on SourceForge.
Remove obsolete AM_CONFIG_HEADER macro.
Fixed a bug that cgdb will crash when hit 'n' with no source loaded.

(Fixed typo of 'curr' and tested 'sview' for NULL. --mmueller)
Fixed a bug that sometimes use quit command from gdb will not quit cgdb.
Change docs license as requested in #6.
Allow configure options to be passed to autorelease.sh.

If you are on a system (like mine) where you need to pass options like
--with-readline=... to configure, then autorelease.sh would be a problem.
Now it takes the configure options as parameters to the script and passes them
on whenever configure is invoked, e.g.:

  ./autorelease.sh --with-readline=/usr/local/Cellar/readline/6.2.4
Update version to cgdb-0.6.7.
Update README with new download location.
Add tiwb to AUTHORS file.
Update cgdb.texinfo

On texinfo 5.1, cgdb.texinfo failed to build saying that itemx needs to be preceded by and item. Changing the itemx to item fixes this.
Added checks for flex, makeinfo and help2man, since the make process fails if these are missing
Added checks to verify that the debugger executable exists (localy as well as in path)
Improve error when debugger not found.
Fix use after free error.
Added syntax highlighting for hex, long and exponential constants in clexer
Update D syntax highlighter.