Improved UI, removed unwanted grey areas

Adjust the height of the span8 class to remove unwanted grey areas from the "start" page UI.
Change "bodyBackground" to maintain color consistency and remove grey areas from start page.
center text in notification center buttons
center notification message in notification bar
revert bodyBackground change
Merge pull request #723 from josephwegner/master

Fix Alignment on Notification Bar
adapt to upcoming invoicing API changes
maybe we need to update these fixtures too
Merge pull request #725 from mjallday/invoicing-tweaks

Adapt to upcoming invoicing API changes
fix edit customer modal
Merge pull request #740 from daliwali/fix-edit-customer

fix edit customer modal
Fix to display long single word description/long url in title of Internal Description
Fix to display long Internal Descriptions in transaction header and transaction info without breaking the page.
Merge pull request #741 from harshadsabne/master

Fix for Long single-word/ multi word/long URL  descriptions that wreck transaction pages