Doc: Use icons from source in the manual

This removes the need to take screenshots of icons.

- Add icon source directories for the .qdocconf file
- Remove screenshots of icons from doc\images (except completion
  icons)
- Copy images that do not have unique names from src or libs
  to \docs\images
- Create images that use overlays and update them in docs\images
- Fix paths and filenames in \inlineimage commands
- Fix text where one screenshot was replaced by two icons

Change-Id: Ib98206890bd15a843566de8d709e45487c70dfbd
Reviewed-by: Alessandro Portale <alessandro.portale@theqtcompany.com>

doc/src/howto/creator-autotest.qdoc

@@ -156,7 +156,7 @@
         \li Open a project that contains tests.
 
         \li In the \uicontrol {Test Results} output pane, select
-            \inlineimage qtcreator-run.png
+            \inlineimage run_small.png
             (\uicontrol {Run All Tests}) to run all test or
             \inlineimage qtcreator-run-selected-tests.png
             (\uicontrol {Run Selected Tests}) to run the selected tests.
@@ -233,7 +233,7 @@
     \endtable
 
     To view only messages of a particular type, select
-    \inlineimage qtcreator-filter.png
+    \inlineimage filtericon.png
     (\uicontrol {Filter Test Results}), and then select the types of messages to
     show.
 

doc/src/howto/creator-help.qdoc

@@ -113,8 +113,7 @@
 
     \list 1
 
-        \li Click the
-            \inlineimage qtcreator-help-add-bookmark.png
+        \li Click the \inlineimage bookmark.png
             (\uicontrol {Add Bookmark}) button on the toolbar.
 
         \li In the \uicontrol {Add Bookmark} dialog, click \uicontrol OK to save the
@@ -166,7 +165,7 @@
 
     If you cannot find words that you know are there, indexing might not have
     been completed for some reason. To regenerate the index, click
-    \inlineimage qtcreator-regenerate-index.png
+    \inlineimage reload_gray.png
     (\uicontrol {Regenerate Index}).
 
     Punctuation is not included in indexed terms. To find terms that contain

doc/src/howto/creator-tips.qdoc

@@ -135,7 +135,7 @@
     \section1 Showing and Hiding the Sidebar
 
     To toggle the sidebar in the \uicontrol Edit and \uicontrol Debug modes, click
-    \inlineimage qtcreator-togglebutton.png
+    \inlineimage sidebaricon.png
     or press \key Alt+0 (\key Cmd+0 on OS X).
 
     For more information on using the sidebar, see

doc/src/howto/creator-ui.qdoc

@@ -155,15 +155,14 @@
 
     \list
 
-        \li To toggle the sidebar, click \inlineimage qtcreator-togglebutton.png
+        \li To toggle the sidebar, click \inlineimage sidebaricon.png
             (\uicontrol {Hide Sidebar/Show Sidebar}) or press \key Alt+0
             (\key Cmd+0 on OS X).
 
-        \li To split the sidebar, click \inlineimage qtcreator-splitbar.png
+        \li To split the sidebar, click \inlineimage splitbutton_horizontal.png
             (\uicontrol {Split}). Select new content to view in the split view.
 
-        \li To close a sidebar view, click
-            \inlineimage qtcreator-remove-split-button.png
+        \li To close a sidebar view, click \inlineimage splitbutton_closetop.png
             (\uicontrol {Close}).
 
     \endlist
@@ -199,15 +198,14 @@
             build, re-build, clean and run the project.
 
         \li To hide the categories and sort project files alphabetically, click
-            \inlineimage qtcreator-filter.png
+            \inlineimage filtericon.png
             (\uicontrol {Filter Tree}) and select \uicontrol{Simplify Tree}.
 
         \li To hide source files which are automatically generated by the build
             system, select \uicontrol {Filter Tree > Hide Generated Files}.
 
         \li To keep the position in the project tree synchronized with the file
-            currently opened in the editor, click
-            \inlineimage qtcreator-synchronizefocus.png
+            currently opened in the editor, click \inlineimage linkicon.png
             (\uicontrol {Synchronize with Editor}).
 
         \li To see the absolute path of a file, move the mouse pointer over the
@@ -307,8 +305,7 @@
     to open its source code in the code editor.
 
     The test cases are listed in alphabetic order. To list them in the order in
-    which they are defined in the source code, select
-    \inlineimage qtcreator-autotests-sort-naturally.png
+    which they are defined in the source code, select \inlineimage leafsort.png
     (\uicontrol {Sort Naturally}).
 
     To run tests, select \uicontrol {Run All Tests} or