This will allow much faster indenting of selected areas as the state
doesn't have to be checked again for every line.

Reviewed-by: Roberto Raggi

Updating the text cursors that the extra selections are based on can
get quite slow if there are changes in a lot of positions - like when
reindenting a file.

Dropping some text cursors can increase performance significantly in
these cases.

Done-with: mae

There are cases like when editing, or when jumping to a line, where we
shouldn't cut it though (so we don't).

Task-number: QTCREATORBUG-1535

No difference in functionality yet.

Reviewed-by: kh1

 * Use tr if a tr method is available at the object
 * Use QT_TRANSLATE_NOOP for global string constants
 * Do not offer to translate stuff inside QLatin1String and QLatin1Literal
 * Do not offer to wrap strings inside tr, trUtf8 and QT_TRANSLATE_NOOP
   with QLatin1String

Conflicts:
	doc/qtcreator.qdoc
	src/plugins/bineditor/bineditorplugin.cpp

Reviewed-by: Roberto Raggi

Keep more information by using enter() instead of turnInto() when moving
from a *_start to *_open.

Task-number: QTCREATORBUG-1776

Otherwise "rebuilding" the debugging helper doesn't necessarily lead to
Qt Creator picking up the new one (some of the locations can be
read-only).

Reviewed-by: dt

we need a real icon in a larger size, this one will scale
poorly.

This was a regression introduced in 8e4fb678
triggersCompletion should return `true' when the token at the left of the T_LPAREN
is an identifier, a SIGNAL, a SLOT or T_GREATER (for template functions).