Add styles for tabs in web interface

3.0 release
Fix text colors in QTreeView in Alterator

plymouth: Fix background scaling
Fix colors of tree widgets in alterator-browser-qt
Fix link color of help messages in Alterator web interface

[alterator] Make links in error messages more visible

Fix file name appearance for input[type="file"]

[grub] Set color for selected menu item background similar gfxboot as
[browser-qt] Return old Chainmail colors, but use Clearlooks theme

Use Alterator colors and Clearlooks theme from Centaurus
Decorate progressbar in Alterator as stripped bar
[ahttpd] Solid background for error message
[grub] Use colors from bootloader

Prepare for new version
Support Plymouth and grub2
Fix password placeholder symbol and background position in installer
Fix background for tooltips and progress bars
Fix color for gfxboot popup menu labels
Remove slides from slideshow
Spec cleanup

drop 'alpha' status.

update CSS styles for progressbar widget and widgets in disabled state

add CSS styles for dialog
replace some explicit corner setup with ui-round-corner class

change default install dir for indexhtml packages (updated patch from azol@)
use unified local documentation link (updated patch from azol@)

add classes for selection inside table.alterator-listbox

add classes for color rows in table.alterator-listbox

add classes: close-dialog-button, help-button, and resizeable
add svg image for close-dialog-button

add svg images and style for page navigation buttons