fix for Windows
Disable vc (see) tests for MacOSX 10.7. Move the copying of CTestCustom.cmake to main CMakeLists.txt.
Import lates changes from Sergey Linev

Here are some of the latest changes:
1. First try to handle resize of canvas in the browser, for the
   moment works only with collapsible layout
2. Also first try to interactively move separation line between
   browser and drawing field.
3. Small fix of minor ticks drawing on the axis
4. Introduce display class for MDI drawing. Provide two implementations -
   'collapsible' for old kind and 'tabs' for new kinds.
5. Adjust size of color palette drawing when labels would take more place as provided.
6. Add correct filling of statistic for TProfile, fix small problem with underflow/overflow bins.
7. Provide way to select display kind ('collapsible', 'tabs') in the simple GUI.

For the complete list of changes, see etc/http/changes.txt
Fix TH1::Rebin for bug ROOT-6706
Fix a warning. Use now same code to get platform as in stress.cxx
Copy from master fix for ROOT-6664