Optimize Search Lucene API performance impact on Drupal

Hi,

firstly thanks for a great module. Wouldn't know what to do without it! Secondly a feature request for the Search Lucene API. I have found that hook_init loads Search Lucene on every page request, no matter if Search Lucene is actually used. In my profile log Search Lucene API is eating about 100ms (this is an obviously bloated value because the profiler is running) during every page generation. I would suggest you put all the actual loading of zend components and registering of autoload paths and so forth into an extra function, which is called if an actual search request or search index update is performed. I don't know much about the structure of your code or how easy this is to implement, so please take this as a suggestion which may be implemented if a maintainer wants to spend work on performance optimization.

Did I mention you did a great job on this?

Thanks