Add tools/incdir.bat; Rename top-level Makefile to Makefile.unix

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5347 42af7a65-404d-4744-a932-0658087f49c3
This is the new, top-level, redirecting Makefile

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5348 42af7a65-404d-4744-a932-0658087f49c3
Merge remote-tracking branch 'upstream/master' into io
Merge remote-tracking branch 'upstream/master' into io
mkdeps.c: Fix some strtok logic; fix some system() return value check

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5349 42af7a65-404d-4744-a932-0658087f49c3
mkdeps.c:  Oops MinGW does not have WEXITSTATUS; Now all of NuttX on native Windows WITH dependencies (still some link time problems).

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5350 42af7a65-404d-4744-a932-0658087f49c3
Setup skeleton code (basic daemon).
Added a missing comment.
Merge commit 'a6294be6f076913d7b2c04e42aae1c0c93193a6f'
Merge pull request #52 from dojomouse/master

GPS Status fixes
Fixed ADC shutdown issue
Added perf counter, cleaned up
Fixed line breaks in ADC test
Minor cleanups in attitude control
Requiring at least four channels for a successful PPM frame
Increased interface slightly to better match 200 Hz, adjusted led flash speed
Better integrate calibration check
Fix led assignment for FMU
better system status reporting, work in progress
ModBus fixes from Freddie Chopin

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5351 42af7a65-404d-4744-a932-0658087f49c3