fa/tests: add a set of a tree constructor using ptr to ptr
fa/memplot: make pointers nicer
fa/tests: add test of a tree with root ptrs
fa/connection_graph.cc: fix selCount computation

Conflicts:
	fa/connection_graph.cc
fa/connection_graph.hh: do not ignore value of FA_TRACK_SELECTORS
fa/box.cc: do not skip initialization of Box::selfReference_ field
fa/forestautext.hh: add makeDisjoint() method
fa/splitting.hh: make sure that components are disjoint
fa/folding.hh: do not fail when selectors to be fold do not match (just do not fold there)
add TA::getAcceptingTransitionCount() method
fa/tests: add interesting test cases
fa/tests: uniform names of tests
fa/tests: rename tests
fa/tests: rename tests
fa/tests: rename tests
fa/tests: add RB list