We already have it in the projects mode so we might as well
use the same in "Getting Started".

Reviewed-by: danimo

By popular request I added a "open project" option.
We don't currently have a way of differentiating project types
from other files so I had to hardcode .pro and .qmlproject
for now.

Themed icons was also added to the new and open buttons.

Reviewed-by: danimo
Task-number: QTCREATORBUG-1142

Reviewed-By: Jens Bache-Wiig

Task-number: QTCREATORBUG-1116

Remove HTML-formatting and replace by properties set in constructor.
Use in forms.

- Fix typos
- Fix layout on OS X

Done with Danimo. Most changes are cosmetic but we modified
the tutorial listing and re-arranged some of the layouts to
better reflect the suggestions by Ergosign and Nigel.

Looks more structured now.

Fixes creating these pages unnecessarily when the Welcome plugin is not
loaded, as well as "leaking" them in that case.

Reviewed-by: con

Reviewed-by: kh1

We need to append "?view=split"to force the split mode check. Make the
check more readable in viewerForContextMode.

In case of split mode we did not check if the actual requested doc
exists and thus did fail to open the browser if it could not be found.

Reviewed-by: Daniel Molkentin

Reviewed-by: ck

QString: Use QChar where appropriate.

doing it in 1.3 as well to avoid possible later conflicts

 * Tips on welcome page still explained CTRL-6 for output mode.
   Remove this.

(cherry picked from commit a8667254)

Fixes: QTCREATORBUG-483
(cherry picked from commit 8929bb27)

Fixes: QTCREATORBUG-483

Reviewed-by: Robert Loehning <robert.loehning@nokia.com>

RevBy: Daniel Molkentin <daniel.molkentin@nokia.com>

Offer to copy the project into an alternative root.

Reviewed-By: con

Reviewed-by: kh

This removes the all hard dependencies to and from welcome screen,
except the one to the core plugin. More in detail:

- Add IWelcomePage to add a tab to the welcome screen
- Move tabs in the modules where they belong
- Enables QHelpManager to open help fullscreen and contextually
- "Getting Started" moves to Qt4ProjectManager
- Projects & Sessions (aka "Develop") moves to ProjectExplorer
- "Community" remains in the welcome plugin for simplicity