Resolved unused_import warning
Merge pull request #34 from FrozenCow/master

Resolved unused_import warning
Added appropriate use line for println
Merge pull request #35 from phillipw/master

Added appropriate use line for println
Now compiles demos, too
Fixed Travis
println is not in prelude anymore, the println! macro should be used
made check for empty SDL_MODE environment variable more robust
reverted println! to println
Merge pull request #37 from koljakube/master

Make check for empty SDL_MODE environment variable more robust
A few fixes for compatibility with rust-master:

- std::str::CharIterator is now std::str::Chars
- std::io::buffered::BufferedWriter is now std::io::BufferedWriter
- std::from_utf8_owned returns Option<~str> now instead of simply ~str
Merge pull request #40 from photex/master

A few fixes for compatibility with rust-master
Switch from rustpkg to rustc
Merge pull request #42 from jordyd/master

Switch from rustpkg to rustc
Address io::io_error removal on rust/mozilla:master
Merge pull request #43 from jcmoyer/rust-master

Address io::io_error removal
Updated README to support external SDL2 libs