Update test and baseline for a recent doc test fix
Add curl to list of optional dependencies

The curl utility is used by the active-http.bro script, but this
isn't mentioned anywhere.
Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  Add curl to list of optional dependencies
  Update test and baseline for a recent doc test fix
Fix the dir module.

Internally, Dir kept track of the files in directory
by storing all inode numbers in a set. However, when a file
is deleted and a new file is created in a directory, the old
file may get the same inode number as the old one. In this
case, bro did not notice the new file.

The patch simply changes the indexing of files - now files
are indexed by inode and creation time.

This should fix the scripts.base.utils.dir test failures.
Revert "Fix the dir module."

This reverts commit 4b0ee2e7ca904d150a687435c2e1b0fdbc241572.

Sorry, bad idea.
Next version of the threading queue deadlock fix.

We now just use the read/write counters, as suggested by Gilbert.
Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  Revert "Fix the dir module."
  Fix the dir module.
Updating submodule(s).

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