Clean C++ compile
Write connectivity_sink and _deflate
Give connectivity_save a return value
Follow sc_io rename
Write a connectivity doc file
Extend documentation
Draw functions Tij
Write simple connectivity read program
Write connectivity_source and connectivity_inflate
Use connectivity_source in connectivity_load
Catch return value in read_conn2
Properly expose new connectivity load/save api
Small comment updates
Write p4est_comm_count_pertree
Add count_pertree to test_comm
Add count_pertree to test_partition
Add connectivity asserts
Change data size to 0 in test_loadsave2
Start p4est_io with p4est_deflate_quadrants
Comment updates