Fixes

• Fixed a bug with the LRU cache. We now raise a ValueError at construction time if a caching template loader is given a cache size less than 1. Previously, in such cases, an IndexError would have been raised when attempting to write to the cache. See #148.

Features

• Added make_choice_loader(), a factory function that returns a ChoiceLoader or CachingChoiceLoader depending on its arguments. (docs, source)
• Added make_file_system_loader(), a factory function that returns a FileSystemLoader, FileExtensionLoader or CachingFileSystemLoader depending on its arguments. (docs, source)