Add styling to login and sign-up forms

Add padding to left and right of form
Add center text-align to row below form
Clean up login and create account html
Add login-form class to re-enter password form
Add minor style changes to login and re-enter password forms

Remove row div surrounding alert in login form
Move alert outside of re-enter password form
Added a help message to the Add Keyphrases screen and fixed some things that got overwritten
added two second timeouts to ajax calls
Add confirm delete to keyphrases on keyphrase list page
Added confirmation dialog to confirm removal of a subscription
Change modal ids from "<text>Modal" to "modal-<index>" in kephrase list and subscription list pages
modal dialog scroll on mobile
Add styling to modal-body class for text-wrap
Move inline style from modal-body to app stylesheet
merged some stuff
Replace 'delete' text with 'remove' in modal dialog on keyphrase list page
Merge branch 'master' of https://bitbucket.org/atscott/text-news-service
Switched the order of the Yes/No buttons on the modals and centered them within the modal.
Merge branch 'master' of https://bitbucket.org/atscott/text-news-service
Fixed some typos in the success messages on the settings partial
Replaced the help.jpg with help.png which is the same icon, but has a transparent background.