Log Message:
The version 2017.0 is mainly a bug fix release. The biggest fixes regard:
* Several fixes for working with HDR images (display in GUI, photometric \ 
optimizer, handling of under/over exposured pixels in merging code).
* Fixes handling of masks in cpfind when images needs remapping for cp finding.
* Sometimes unsaved changes were disregarded without asking the user (e.g. when \ 
loading a project via the recently used projects list). Unsaved changes should \ 
now always require user confirmation.

Besides the bug fixes some smaller improvements have been implemented.
* Optimizer tabs uses now checkboxes instead of bold underlined font for marking \ 
of variables to be optimized.
* Use wxWidgets help windows instead of default browser (Linux&Mac only, \ 
this provides table of content, index and full text search in help files).
* Added special assistant variant for single image projects.
* Display of final panorama dimensions on stitcher tab.
* Extended the user defined output sequences:
  - The shipped user defined output sequences are exposed in the GUI as own sub-menu.
  - Added some more user defined output sequences (layered TIFF, cube faces).
  - Added new placeholder %sourceimage% to user defined output sequence.