Task-number: QTCREATORBUG-3097
Reviewed-by: con

It was being reset based on the highlighter definitions.

Consider some refactoring with the related options as well to avoid
overriding user's settings.

Done-with: Thorbjorn Lindeijer

This leaves the code prepared if we decide to ship some of the Kate XMLs (still
a pending decision). In this case the installer needs to be "notified" and the
Kate files put in the repo.

An addition check for actual XML files in the searched directories is also added.

Reviewed-by: con
Reviewed-by: Thorbjorn Lindeijer

Didn't work if a project specific encoding was set.

Task-number: QTCREATORBUG-65
Reviewed-by: Robert Loehning

There was an off-by-one error for the normal find scope.
Improved look by ignoring the left side.

This caused it to go to 0 when for example displaying size 9 at 10%,
which is an invalid value so it caused the text to revert back to the
default size.

It also caused zooming to sometimes appearing to have no effect. For
example zooming size 9 to 110% would still yield size 9 rather than 9.9.

Task-number: QTCREATORBUG-2744
Task-number: QTCREATORBUG-2745
Reviewed-by: Robert Loehning
Reviewed-by: hjk

Reviewed-by: Leandro Melo
Reviewed-by: hjk

Example situation: The plain text editor is displaying in-memory content and
has not been explicitly "configured". If there's an attempt to indent the text
it crashes since the indenter is invalid. This can happen if one clicks on 'Show
View Contents in Editor' within a debug session and press enter in the editor.

Reviewed-by: con

Reviewed-by: con

Reviewed-by: con

Reviewed-by: ckamm

Reviewed-by: hjk
Reviewed-by: Erik Verbruggen

Reviewed-by: hjk
Reviewed-by: dt
Task-number: QTCREATORBUG-2038

The generic highlighter already provided a method for this.
This method was then lifted to the base syntax highlighter
and it is now used by the profile highlighter.

Reviewed-by: Roberto Raggi
Task-number: QTCREATORBUG-2448

Now the plain text editor only tries to apply a highlight configuration
if the MIME type passed is valid. Otherwise, it should behave as an ordinary
trivial editor and should not miss a highlight definition.

It was refusing to stay at index 0.

Task-number: QTCREATORBUG-2472
Reviewed-by: Erik Verbruggen

Reviewed-by: Leandro Melo

And make use of it to accept on the command line the patterns:
"filename" "+45", "filename" ":23", "filename:12" and "filename+42"

Task-Nr: QTCREATORBUG-2428

Buttons Select All/Clear Selection/Invert Selection.

- Names of buttons, labels, dialogs, and methods.