0.12dev: Added an option `[trac] genshi_cache_size` to allow specifying the template cache size for Genshi.
0.12dev: Added an option `[trac] genshi_cache_size` to allow specifying the template cache size for Genshi.

Closes #7842.

pkdevbox/trac,pkdevbox/trac,pkdevbox/trac,pkdevbox/trac