Doesnt need boost anymore to build, drop useless g++3 patches, depend on
gdal. From kirby@ : remove duplicated qt4 from LIB_DEPENDS, set
SHARED_ONLY and merge PFRAG.shared into PLIST.
'random negative ids', until a better solution is found with upstream.
Fixes the 'oh i can't upload those new nodes to the server because they
have positive ids' annoying bug (that appeared since switching to gcc4 ?)
While here, switch to newer REVISION/LIB_DEPENDS.
Merkaartor is an openstreetmap mapping program written in C++/QT4. It
focuses on providing a visually pleasing but performant editing environment
for free geographical data.