Merge pull request #29 from bvssvni/master

Minor fixes
Initial commit of early Widget trait with example. Also includes basic Button, Toggle and Slider widgets
Merge pull request #31 from mitchmindtree/master

Initial commit of early Widget trait with example. Includes Button, Toggle and Slider.
Reworked the imperative Widget system into an Immediate Mode style
Merge pull request #35 from mitchmindtree/master

Reworked the imperative Widget system into an Immediate Mode style with Improved Example.
Fixed folder hierarchy to work more like freetype-rs
Fixed gitignore and examples structure
Merge pull request #36 from mitchmindtree/master

Fixed examples directory structure
Removed unnecessary dependencies from conrod lib
Added font rendering with freetype-rs and implemented label widget.
Updated readme with  and  sections
Fixed image positioning in readme
Merge pull request #37 from mitchmindtree/master

Added font rendering with freetype-rs and implemented label widget.
Added label to Toggle, implemented glyph-caching, fixes #38
Merge pull request #39 from mitchmindtree/master

Added label to Toggle, implemented glyph-caching, fixes #38
General module tidying and small fixes.
Fixed slider to only trigger callback event if clicked, released or if value is changed
Merge pull request #41 from mitchmindtree/master

General module tidying, Fixed slider closure callback conditions.
Fixed issue where highlighted state could be triggered by dragging already pressed cursor over widget
Merge pull request #42 from mitchmindtree/master

Fixed an issue where highlighted state would be triggered non-intuitively.