Use grid-input-span mixin for input spans

see corresponding bootstrap mixin:
https://github.com/twitter/bootstrap/blob/master/less/mixins.less#L656
Added missing table row style
Merge pull request #208 from behrends/master

Fix: use grid-input-span mixin for input spans
Merge pull request #207 from toxaq/master

Added missing warning style for table row highlighting
Fix expected a color. Got: transparent bug.

Seems to keep rearing it's ugly head at random. Fix #219
2.1.0.1

Various bugfix release.
Removed stray 100% from vertical-three-colours mixin

In the gradient-vertical-three-colours mixin, the mozilla specific call multiplied the colour stop by 100%.  This was not present in the original bootstrap mixin(1) and was not present in bootstrap-sass 2.0.4.0.  The mozilla documentation also does not indicate any difference in syntax is necessary (2)

Before my edit, we were getting errors such as:

> 7000%*% isn't a valid CSS value.

when using the mixin.  With my edit the mixin functions correctly.  Would it be possible to accept this patch and update the Gem?

Thanks heaps,
Jason O'Neil

(1) https://github.com/twitter/bootstrap/blob/master/less/mixins.less
(2) https://developer.mozilla.org/en-US/docs/CSS/linear-gradient?redirectlocale=en-US&redirectslug=CSS%2F-moz-linear-gradient#Cross-browser_gradients
Update vendor/assets/stylesheets/bootstrap/_component-animations.scss
Fix Bootstrap's variables documentation link
.input-block-level should also be a class, not just a mixin
Retain Sass 3.1 support by removing variable in media query breakpoint
Merge branch 'wndxlori-master'
Merge pull request #222 from jasononeil/patch-1

Removed stray 100% from vertical-three-colours mixin
Merge pull request #227 from theo-bittencourt/patch-1

Update vendor/assets/stylesheets/bootstrap/_component-animations.scss
Merge pull request #228 from Agis-/patch-1

Fix Bootstrap's variables documentation link
Merge pull request #231 from sguha00/input-block-level

.input-block-level should also be a class, not just a mixin
Multiple shadows

Allow multiple shadows with variable arg
Fixed problem with compass building _forms.scss
Merge pull request #242 from mhlavac/master

[FIX] Compass can't build _forms.css due to invalid character in comment
Merge pull request #241 from asecondwill/master

Multiple shadows