Put ioslaves on hold.

This patch couples those merged in KIO & KDEWebKit in SC 4.6.
I have to say it is probably NOT perfect and ready to merge, but I'd like to
because it is anyway a nice step over actual behavior.

It basically holds and (re)publish slave for apps needing it, letting us fixing
a long standing bug against the infamous TWO connections to do ONE thing (download, move, etc...)

It also gave me the possibility to and/or improve these things:
- better handling filenames, studying content disposition header for "attachment" and "inline" values
- better history handling, when working with kparts (also if this part needs a proper fix, IMHO reimplementing QWebHistory class...)
- a (proper?) fix for POST operations returning content. I admit I am dubious with this part and I need more testing. The nice thing
is that this patch "circumscribes" this problem, letting it easy eventually fix it again

I also copied from kdewebkit a check for exec text files mimetypes (converted to text/plain) and cleaned-up some kDebugs
(and as usual, added a lot..)

Last, sorry for the big commit message and the big/not so big patch here. It is a special case.

commit 29f3021d94e26b39f3e8172a980a6cafcebe5095
Author: Andrea Diamantini <adjam7@gmail.com>
Date:   Wed Jan 5 12:17:45 2011 +0100

    cleanup comments

commit fc88a37322810fd25c5bfcd16880fc617e7de9f5
Author: Andrea Diamantini <adjam7@gmail.com>
Date:   Wed Jan 5 12:06:55 2011 +0100

    content-disposition: inline

commit 7c2789a1733e1089b9c66cd6c553185792ec3a72
Author: Andrea Diamantini <adjam7@gmail.com>
Date:   Tue Jan 4 12:04:03 2011 +0100

    Fix history handling.
    For a proper fix here, I think we need to reimplement the tab history, otherwise we cannot manage
    tab history browsing on the so called "rekonq" pages...

commit 892c4d8dc78fda43f67566a3e359bd9805ee3282
Author: Andrea Diamantini <adjam7@gmail.com>
Date:   Tue Jan 4 11:57:29 2011 +0100

    Two cases here:
    1) POST operations returning content
    2) right file names

commit 3b1d5873b7eb743406f3b8c5abb79ce6728d0103
Author: Andrea Diamantini <adjam7@gmail.com>
Date:   Tue Jan 4 03:24:21 2011 +0100

    Stupid kDebugs...

commit 73d038a757185816f40795d4dd4a68e11659c971
Author: Andrea Diamantini <adjam7@gmail.com>
Date:   Tue Jan 4 02:32:45 2011 +0100

    It needs testing from people (just) having last KDE SC 4.6 code on...

1 files changed, 15 insertions, 15 deletions

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 11c00c28..599295f7 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -619,26 +619,28 @@ void MainWindow::openLocation()
 
 void MainWindow::fileSaveAs()
 {
-    KUrl srcUrl;
     WebTab *w = currentTab();
-    if (w->page()->isOnRekonqPage())
-    {
-        QWebElement el = w->page()->mainFrame()->documentElement();
-        srcUrl = KUrl( el.findFirst("object").attribute("data") );
-    }
-    else
+    KUrl srcUrl = w->url();
+    
+    // First, try with suggested file name...
+    QString name = w->page()->suggestedFileName();
+
+    // Second, with KUrl fileName...
+    if (name.isEmpty())
     {
-        srcUrl = w->url();
+        name = srcUrl.fileName();
     }
-    kDebug() << "URL to save: " << srcUrl;
-
-    QString name = srcUrl.fileName();
-    if (name.isNull())
+    
+    // Last chance...
+    if(name.isEmpty())
     {
         name = srcUrl.host() + QString(".html");
     }
+    
     const QString destUrl = KFileDialog::getSaveFileName(name, QString(), this);
-    if (destUrl.isEmpty()) return;
+    if (destUrl.isEmpty()) 
+        return;
+    
     KIO::Job *job = KIO::file_copy(srcUrl, KUrl(destUrl), -1, KIO::Overwrite);
     job->addMetaData("MaxCacheSize", "0");  // Don't store in http cache.
     job->addMetaData("cache", "cache");     // Use entry from cache if available.
@@ -984,7 +986,6 @@ void MainWindow::openPrevious(Qt::MouseButtons mouseButtons, Qt::KeyboardModifie
     if (currentTab()->page()->isOnRekonqPage())
     {
         item = new QWebHistoryItem(history->currentItem());
-        currentTab()->view()->page()->setIsOnRekonqPage(false);
     }
     else
     {
@@ -1018,7 +1019,6 @@ void MainWindow::openNext(Qt::MouseButtons mouseButtons, Qt::KeyboardModifiers k
     if (currentTab()->view()->page()->isOnRekonqPage())
     {
         item = new QWebHistoryItem(history->currentItem());
-        currentTab()->view()->page()->setIsOnRekonqPage(false);
     }
     else
     {