Made a settings form as a tab on Performance and exposed block cache lifetime and "fresh mode" options.
flexicache module is no longer required for basic functionality.
Expanded and cleaned up tests.

    paths property now uses relative paths.
    Cleaned up stats module a bit.

Cache clear logging now respects minimum lifetime.
Stats now use a capped collection and natural ordering.
Views plugin tags entity IDs onto cache entries.

Added Views integration and Pressflow patch. Correction to D6 core patch to include flexicache_get() in block.module.

Added statistics module and verbose logging functionality. Stats are no longer tallied in the main collection.

Split off API into separate include, added stats mode, clearing on standard core hooks, core patch, support for block caching, placeholder README.

Implement hook_requirements() to check for a MongoDB connection on 'install' phase. Also ensure indexes on cache flushes.