use r3_tree_matchl
-fprofile-arcs -ftest-coverage for debug mode
travis ci: update dev deps
update README
Formatting optimization of C code in the README file.
Merge pull request #18 from thedrow/patch-1

Formatting optimization of C code in the README file.
remove paragraph
delete unused files.
delete autogen.sh files
delete Makefile.in
delte Makefile.in
delete autogen files
delete missing
update gitignore list
update gitignore list
Export symbols only when it matches regex '^r3_'
we don't use list.c for now, so just skip it
Update export symbols regex to ^r3_|^match_
Merge branch 'feature/export' of https://github.com/czchen/r3 into czchen-feature/export

Conflicts:
	src/Makefile.am
Merge branch 'czchen-feature/export'

struct name does not need to be exported since they are just offset and
size in application binary interface (ABI). As for symbol match_entry,
updated regex will export them.

The command objdump -t libr3.so.0 can be used to see export symbols. If
the second column of a symbol is marked as g, it is exported.