Merge pull request #867 from deividmarques/reboot

Fixes in the documentation
Create custom attributes to modal
Improvement our reset style. Now <button> and <input> are aligned with <a>.
Adjusted buttons alignment.
Creating field’s class to variate height.
Creating documentation and added menus.
Added new inputs variables
Fixed select height and set new classes to change height.
Improvements to input’s height documentation.
Test to customAttrs
Adding ls-width-500
Merge pull request #869 from flaviomuniz/reboot

Create custom attributes to modal and adjusts modal doc.
Merge pull request #870 from Wylkon/reboot

Implemented input's height
Little improvements in input’s size documentation.
Merge pull request #871 from Wylkon/reboot

Little improvements in input’s size documentation.
Changing the name of forms classes

We think the name that we put in forms elements was very confusing. The
label was called .ls-field and the text of label was called ls-field.
Now, we chage this to this:
label - ls-label
text of label - ls-label-text
input/field - ls-field
fieldset or another form container - ls-form-group

We think this is better.
Changing names of form field size.
Fixing size of field forms doc.
Merge pull request #873 from diegoeis/reboot

Changing the name of forms classes
add theme color to links in the guided tour