Merge pull request #8 from cmr/master

cargo-lite support
Update to rust master
Merge pull request #10 from cmr/update-master

Update to rust master
Use Makefile
Implement Rust-ci documentation
Update .gitignore
Merge pull request #12 from bjz/make

Use Makefile
Fix threading issues

Fixes #9
Improve examples using Port::iter
Merge pull request #13 from bjz/thread-safety

Fix threading issues
parse_file added, renamed parse_xml to parse_str
Merge pull request #14 from photex/master

Renamed parse_xml to parse_str and updated the implementation of parse_file.