For now I don't want to have full library functions.
The ANSI raptor.

The target of this branch is to create fully documented, cleaned up
version of our raptor implementation. While we have choosen C99
initially, it seems the portability of this code is still flacky. A
version that is clean in -ansi -pedantic -Wall mode, might be more
portable.

For functions that are not supported unless a feature test is provided,
I have carefully written a substitute which should make porting the code
more easy.
add break
Remove unrequired headers for now
80 columns comment alignment
Phase 3 was already available above the comment.
Implements time rounding.

https://github.com/bliksemlabs/rrrr/commit/2fb894ac950b417f44093a0261213baea15e5049
comment
Adding router_request.h
implement memset32
implement radixtree
Add geometry functions
Add Bitset
Add tdata_validation
Update bitset
gtfs_realtime_alerts
Update
router_request
remove portable.h
Update