Added in TODO list to allow manual cache clearing.

At this moment if you run out of space you can:
- Set lower Cache TTL
- Disable cache for specific languages

Right now if you want manually clear your cache you can do it partially - set Cache TTL to 1 (do not use 0 value) and from Admin CP manually trigger scheduled task "vB Enterprise Translator (Cache TTL)". After that you can set Cache TTL to previous value if you want.