File: changed 'libfile' argument to 'filename'
Cache: recursive shared library lookups work now

- Lots of updates to POD
- Changed the order of parsing of '$ldd_line', some of lines were
  being parsed incorrectly because the shorter regexes would match the
  contents of longer lines
- Lots more debugging output, including displaying lists of
  dependencies returned from a cache/ldd query
app: print the dependencies returned by Cache
app: removed "template" info from POD
Cache: setting up forward/reverse dependencies
File: increment dep count when methods are called