Scene Builder 1.0 b43 and b44

Reproduce Steps:
1. Check preconditions
   Supported JRE exists (e.g. 6u32)
2. Double click on the Scene Builder msi file (32 or 64 bit)
3. Navigate through the defaults
4. run 32 bit scenebuilder.exe
5. Uninstall the 64 bit SB from control panel

Expected: 64 bit SB files are removed
Actual: C:/Program Files/Oracle/JavaFX Scene Builder 1.0 Subdir unexpectedly found

Affected cases:

scenebuilder/SB006-003