Add -g header for debugging.
Remove -O3 header because it led to a segfault on a corrupted PBF file in the fread() call. Strange!
Check result of ParseFromArray functions.
* New osmpbf.h makes including easier and defines some often used constants
* README now explains how to use the lib
* New version of debian package includes
* osmpbf.h
* osmpbf-outline tool
* README