Fixed a small spelling error
Made the inner class public, because it caused a ClassNotFoundException as soon as I add another prefs page, which does not even use that class... yes, really weird; really Eclipse
Adds preferences and matching page for some network properties.

- the HTTP time out (with a new default of 50 secs)
- the shortest time when polling a Task (still at 2 secs)
- the longest time when polling a Task (still at 20 secs)
Added missing trailing slashes on the fly
Stop trying multiple times; just once
When no data set was created, do not continue and return empty results
Merge pull request #12 from egonw/6-onlyContinueWithDataSet

When no data set was created, do not continue and return empty results
Merge pull request #11 from egonw/5-onlyOneTry

Stop trying multiple times; just once.
Merge pull request #10 from egonw/4-trailingSlash

Added missing trailing slashes on the fly
Merge pull request #7 from egonw/1-typoFix

Fixed a small spelling error
Merge pull request #8 from egonw/2-networkPrefs

Allow setting of custom network properties. Addressing bug #3487.