Make TopBar respond to $text-direction 

TopBar doesn't respond to `$text-direction: rtl` correctly. So I used `$default-float` and `$default-opposite` and it seems to be working.
Update pricing-tables.html.erb

Wrong mixin
setting img to inline-block as setting it to block for all images breaks most website layouts
setting img to inline-block as setting it to block for all images breaks most website layouts
setting img to inline-block as setting it to block for all images breaks most website layouts
setting img to inline-block as setting it to block for all images breaks most website layouts
use progress bar vars instead of global color vars
removed duplicate code
reset border radius
add bg color variable for progress bar
fixed block grid nth-of-type clear fix
added mixin clearing instruction to block grid docs
Merge pull request #1740 from martianboy/patch-1

Make TopBar respond to $text-direction
Merge pull request #1744 from diegoviola1/patch-1

Update pricing-tables.html.erb
Merge pull request #1755 from 2ndkauboy/master

setting img to inline-block as setting it to block for all images breaks most website layouts
updated changelog
Merge pull request #1756 from elidupuis/progress-bar-variables

use progress bar vars instead of global color vars
Merge pull request #1758 from albogdano/master

Fix for .postfix/.prefix.button.radius
Merge pull request #1759 from elidupuis/progress-bar-bg

add bg color variable for progress bar
updated progress bar variables