add convenience functions for easy access to first/last element of a list default tip

critical: fixes uninitialized memory in tree iterator

fix copy/paste documentation

remove unused file

fix wrong flags in toolchain.mk files after updating uwproj

update uwproj

fix that iteration continued with siblings for a subtree-root - fixes #656

add explanation of depth to the iterator/visitor field

add a test case that proves that visitors are not affected by issue #656

add test case that shows issue #656

(0) -1000 -300 -100 -10 tip

mercurial