Fix for enabling/disabling login button

Getters in obj-c don't have 'get' in front of them, unlike setters.
Easy to remember. :)
Localisation updates from http://translatewiki.net.
Work-in-progress on getting started screens

Presently only showing when login screen info button is tapped. Not hooked up to UIPagecontrol yet. Also needs proofing on iPad and 3.5 screens. Will finish this easy remaining stuff then ammend this commit.
Fixed bug with CALerpLine related to redrawing shorter lines
Layout tweaks
Added UIPagecontrol for dots on bottom of screen
Renamed private vars
Clean-up based on designers feedback
Automatically show "Gettings Started" pages once

Only if no credentials present.
i18n for the getting started pages
Fixed layout bug if geting started page was invoked while landscape

For now made the gettings started pages always be portrait. Can re-visit this later if necessary.
Moved "About" contents to "Settings"

Removed about view controller. There will be large chunks changed in project.pbxproj, but they should be correct as they're the result of removing the about view controller.
Made My Uploads info button load new Getting Started pages
Fixed Getting Started layout but on iPad

The third Getting Started page was having layout issues on iPad.
Layout fixes for iPad and 3.5inch screen devices
Getting started wording updates
Adjusted text margins on second Getting Started page
Revised Getting Started text layout from designer feedback
Eliminated Getting Started page control dot update delay

One of the 3 page control dots at the bottom of the screen is lighter in color to indicate the current page. Previously the dot was being updated only after scrolling to new page had completed. Now it updates as soon as a majority of the screen is filled with a given page.
Ensured Getting Started labels will display long i18n text correctly

The labels use attributed strings and are resized after i18n text is loaded and styling attributes are applied. Attributed strings give fine control over text line spacing and other text style settings. After the labels are resized the spacing around them is adjusted ensuring long i18n text won't crowd surrounding elements. Also slightly enlarged Getting Started text size on iPad.