Local portab_DDD.h file

Also call SetMaxThreads(0) (even for Windows, doesn't hurt).
<sys/time.h> is in portab_DDD.h, so not needed in timer.cpp (and would have
needed to be included only on certain systems).
Updated Makefiles

Mostly make depend and make clean
Merge pull request #1 from sorenhein/cleanup-pre28

Cleanup pre28
Blanket update to eliminate "pretty" spacing

Ran through astyle with .astylerec
--style=allman
--indent=spaces=2
--pad-oper
--indent-classes
--indent-switches
--indent-namespaces
--indent-preproc-define
--pad-header
--align-pointer=middle
--align-reference=middle

Ran through small Perl script to turn multiple spaces into a single one,
other than at the beginning of a line.

Fixed the most glaring manual issues.
.gitignore file
Merge branch 'respace' into develop

Conflicts:
	ddd.cpp
	timer.cpp