experimental buffering of trees
implement prototype. Does not work.
try another system for cache invaldiation
Merge branch 'master' into buffer_newick_tress
clean-up code
Merge pull request #23 from scrm/buffer_newick_tress

Buffer newick trees
update wiki
update manual
update wiki
update NEWS
ready for doxygen file removal?
remove libcppunit
remove doxygen and related from the master branch
version bump
remove semicolons after function definitions
add return statement to debug function
remove code to track secondary roots
Merge branch 'master' into jz