Add coveralls.io support
Merge pull request #25 from czchen/feature/coveralls

Add coveralls.io support
Add coverage report button
Rename count_slug to slug_count
move strndiff and strdiff to node.c and make it private
Rename compile_slug to slug_compile
str_split is unused
_r3_tree_insert_pathl to r3_tree_insert_pathl_
delete demo.c
merge r3_define.h into r3.h
no jemalloc for now.
Add more patterns to gvc paths
use doublecirlce for endpoint nodes
r3_define.h is removed
remove r3_define.h
put r3_define.h back XD becase we depends on bool
when child is not endpoint, return NULL
Merge remote-tracking branch 'c9s/master'
function name fix
Merge remote-tracking branch 'c9s/master'