Tsn31 integrate pro tmbgeneration (#789)
Tsn31 integrate pro tmbgeneration (#789)

Added support for URL thumbnail generation

tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces