* Route filestat.c through the wrapper layer; isolate the statcache code
so that it is independent of php functions and can be applied to any
stream/path.
+ * Implement generalized connection pool for stated protocols such as
+ ftp and http/1.1 (using keep-alive) to avoid having to negotiate
+ new command/request stream for each subsequent call; Possibly store
+ resources in contexts (creating a default context if necessary) to
+ allow segmentation of connection pools.
* Add a method to take ownership of the memory buffer in memory streams so
that generating string values for zvals doesn't require an estrdup.
* bundle and use curl lib for fopen wrapper.