issue : Nik 6 Perspective Efex not found by PWP

[pierrelabreche]

Other components are found, but not Nik 6 Perspective Efex.
The installation folder for Nik 6 Perspective Efex is not collocated with the other components of Nik 6 in the bin folder.

For example :
"C:\Program Files\DxO\Nik Collection 6\bin\Nik 6 Analog Efex.exe"
"C:\Program Files\DxO\Nik Collection 6\Nik 6 Perspective\Nik 6 Perspective (64-Bit)\Nik 6 Perspective.exe"

[jsachs]

Fixed for next release.