5.10.1 -- Fix various bugs

- Fix issue where incremental builds were failing with "stream closed"
  exceptions, caused by incorrectly trying to copy hoplon source files
  from jars multiple times.

- Fix jQuery lib dependency.

- Fix issue where jar resources were not being compiled because they had
  no last-modified time.

- Fix issue where many spurious warnings were printed by the CLJS
  compiler on the first build cycle. This was caused by hoplon emitting
  CLJS files into a tmpdir without the proper class path subdirectory
  structure.