That is get code completion without saving the file or building.

Task-Nr: QTCREATORBUG-1657

Should have been done earlier. 2.1.80 was burned in the pre-2.1.0->2.0.1
days, and we'd like to have odd subminor for 'working' and even subminor
numbers for pure cherry-picking release branches anyway.

Task-number: QTCREATORBUG-2456

In some cases snippets have a description. Due to the sorting this
already places them after keywords. So this is just to be consistent
for all cases.

Task-number: QTCREATORBUG-1517

Task-number: QTCREATORBUG-2427

Introduce some more private classes for the coreplugin,
use header include convention
<QtModule/QClass>, de-qobjectify VariableManager.

Task-number: QTCREATORBUG-2307
Reviewed-by: Thorbjorn Lindeijer

There was a bug in 5cd6ebfd which meant
no reindent of the current line was triggered for the opening curly
brace on a new line.

Task-number: QTCREATORBUG-2331

Also introduce a indirection, modes have now types, edit and debug have
the same type, and editors do have a prefered type of modes instead of a
prefered mode.

That fixes the bug that if the prefered qml editing mode was set to
design, then in switching between qml editors would
- in Edit Mode: stay in edit mode
- in Debug Mode: switch to debug mode

Task-number: QTCREATORBUG-2300

This should make the indenter less strict and annoying for non-standard
indentation styles.

Reviewed-by: Roberto Raggi

Thanks to this patch we can move the filtering of C++ symbols
in a background thread.

Done-with: Erik Verbruggen

The function always switched to Edit Mode, which was the cause for
several bugs. Since openEditor() already does switch to the right mode,
the function is not really needed.

The following actions now respect the prefered mode of the editor:
"f file"-locator
The Open Documents list
Editor history navigation

Task-Nr: QTCREATORBUG-2243

Task-number: QTCREATORBUG-2111

This makes sure styles are consistent for the editor and the quick fix
engine.