Merge commit '350eb0689b0eec978729fd41bbb0bbe93df6243f'
Merge commit '80a982ebf7018b7a66a5e5dfad5c8799250be387'
Merge commit '6dc22cb810c83f16c7fbc8e098275baabe216be1'
Renamed to suffix `_mut`

Closes https://github.com/PistonDevelopers/image/issues/129
Merge pull request #131 from tomaka/master

Update for rustc
Merge pull request #130 from bvssvni/master

Renamed to suffix `_mut`
Merge commit 'b5b1c81474fed34206f6b27968c39cf1abb6c750'
Update to std::err::FromError trait.

Finally we are getting rid of the `io_try!`-macro.
Merge pull request #132 from nwin/master

Get rid of io_try!
Added maintainers to README

Closes https://github.com/PistonDevelopers/image/issues/122
Fail example if necessary.
Fixes #133
Refined comment.
Fix deprecation warnings.
Merge pull request #135 from nwin/master

Fix for #133
Merge pull request #136 from nwin/master

Fix deprecation warnings.
Upgraded to latest Rust

Closes https://github.com/PistonDevelopers/image/issues/137

* Added Primitive placeholder trait
* Added `max_value` to replace deprecated Bounded
* Added imports to Float, SignedInt and FloatMath
* Removed Num constraint on clamp functions
Merge pull request #141 from bvssvni/master

Upgraded to latest Rust
Always read the background field.
Merge pull request #143 from nwin/master

Fix possible bug in gif.