Merge tag '4.9.9' into develop

4.9.9 Features:
    Fixed the previous fixes
    Fixed animation export for .anm

4.9.8 Features:
    Fixed incorrect index numbers in the extract_ani functions.

4.9.7 Features:
    Fixed the fix of a fix from last time, this is getting stupid.

4.9.6 Features:
    Fixed .cga export, again.

4.9.5 Features:
    Fixed that drop-down menu from the last update
    Refactored some more code
[#6] Code formatted. Deleted unused vairiable.
[#6] Removed unused and commented out code.
[#12] Added image conversion to tff.
[#12] Image properly saves as tiff.
[#6] Improvements in calling rc. Refactored export.py:write_to_file().

RC is now executed only once while creating mtl and running RC.
[#6] Split up __export_library_effects(), improved __export_library_geometries().
[#6] Formatted code to match PEP-8.
[#6] Code refactored to reduce duplicated sections.

Refactored export.py:__export_library_animation_clips_and_animations().
[#12] Added DDS exporter. Tiffs are not deleted after conversion.
[#6] Code reorganization.
[#12] Fixed bugs in DDS converter.

Temporaty tiff files are deleted after conversion.
[#18] Added button to save tiffs.

Fixed variable name typo.
Tiffs are saved and deleted only if original image has different path.
[#6] Removed useless code.
[#19] Replaced some string concatenation by creating a list of strings.
[#6] Fixed strange counting code.
[#18] Tiffs are now created in temporary directory and moved to destination only if user wants to.
[#20] Configuration code reorganized. Find the Resource compiler now shows current RC path.

Removed eval().
Removed comented out code.
[#6] Improved implementation of reloading imports.
[#20] Configuration simplified and moved to separate module.