Rename qmlprofiler to qmlprofilertool

Avoid clash with qmlprofiler.pro from plugins which causes problems
for Visual Studio Solution.

Change-Id: I360b952ab9170a4823ef0cab75b969512af5c31f
Reviewed-on: http://codereview.qt.nokia.com/4190


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>