Update to new seed identity.

This identity is intended only as a seed. I will not rate identities
with it. I lost the previous identity when my WoT database corrupted
because I didn't have a backup and was unable to recover it.
Improve README.txt
- Fix commmand-line compilation instructions
- Add Eclipse compilation instractions
- Upadte copyright date
- Use "WOT" instead of "WoT" as we usually call it that way nowadays
- Make WOT JAR path more self-explanatory
- Fix the explanation of where to find WOT on the web interface
Revert "Remove RandomGrabHashSet:"

This reverts commit f9519ad8f26c5a7c9a1fff54bfb6c2f127820e5f.
Discussion in the fred pull-request which aimed to move the class to fred (https://github.com/freenet/fred-staging/pull/198) has shown that the class is better placed in WOT than in fred.
Revert "Use Fred's RandomGrabHashSet:"

This reverts commit c5ec305817d051a45414967475e0023aae3d30d7.
Discussion in the fred pull-request which aimed to move the class to fred (https://github.com/freenet/fred-staging/pull/198) has shown that the class is better placed in WOT than in fred.
Implement unit test for RandomGrabHashSet:
- Adds size() to RandomGrabHashSet because the unit test can use it well.
- Notice that the testGetRandom() and testIndexConsistencyRandomized() take around 100ms on my Core 2 Duo which is acceptable IMHO.
- This originally was commit e4b381d138cefc181847b92d2d07371ced1fd1e0 on fred branch RandomGrabHashSet
JavaDoc member variables:
- Also switch their order because the JavaDoc of mIndex refers to mArray but NOT vice versa so it is good to list mArray first.
- This originally was commit 4ff7c3a679e6c7a9ad784b03d2632ed1748dbf3b on fred branch RandomGrabHashSet
Rename mArray to mData. Thanks Bombe!
- This originally was commit 04fca372c52577e2ea9daa16aa72dcc22c30a479 on fred branch RandomGrabHashSet
Apply remaining changes which happened upon RandomGrabHashSet while it was added to fred:
- Fix typo in JavaDoc
- Throw IllegalArgumentException instead of DuplicateObjectException
- JavaDoc exception throwing because its a difference to common HashSet.add()
JavaDoc why add() throws instead of returning false
Reduce unit test verbosity:
- Thanks to bertm!
Rename RandomGrabHashSet.add() to RandomGrabHashSet.addOrThrow():
- This stresses the fact that unlikely common Set.add(), this function will throw if the element is already in the set. Thanks to Bombe, bertm et al.
Merge branch 'master' into fix-database-leakage