Bump log_code.c test coverage to 54% by putting a call to tdb_logprint into the Makefile.  Addresses #369.

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Make each rollback code take a list of arguments rather than a single logentry.  Makes it easier to notice that I've got unused variables.  Addresses #27.

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Test that shows bug described in 367, data = key = (NULL,0)
is not supported by our cursor implementations.

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Rework the way transactions ids are used in the log (xid's on messages are used when inserting something into a leaf.)  Addresses #27.

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Effectively eliminated 'non cursor' gets.
Internally (in brt) all gets were cursor gets already.
To save future locking code, and reduce complexity of ydb,
all DB->get calls use cursor gets as subfunctions.

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Only uses lock tree if both txns and locking system are enabled.
If TXN only is enabled, it implies only one txn at a time: no lock tree needed.
If LOCK only is enabled, it implies no txns, therefore only ephemeral locks needed (lock tree not needed)
If neither are enabled, clearly lock tree is not needed.

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Fixed some bugs in test_db_txn_locks
to port it over to BDB.

git-svn-id: file:///svn/tokudb@2192 c7de825b-a66e-492c-adef-691d508d4ae1

Bugfix with releasing locks/unlocking a transaction.

DBC->c_get (DB_SET)
and DB->put (DB_YESOVERWRITE) now perform locking
Secondary dbs not included (behavior unknown).

Several tests added for c_get (DB_SET) and DB->put(DB_YESOVERWRITE).

Lock tree only created if INIT_TXN is enabled during env creation.


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Test does not yet pass due to locking not fully implemented.

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Create {{{toku_assert}}} (Fixes #354).  Make the primes test actually work (Fixes #355).  Addresses #277. 


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Bugfix with toku_lt_set_txn_add_lt_callback
Had the error case backwards.

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Integrated lock tree into the transactions.
    Allocated on create
    unlocked on abort/commit
    transaction keeps track of which lock trees it owns locks in
Started working on integrating c_get functions.
Modified locktree API to make it easier to use both dupsort and nondup dbs
Fixed tests to work with new locktree API.

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Modified svn:ignore properties to ignore unneeded information.

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Modified makefiles to clean up install process
Added tests
Added hash table to store list of db's that a tx has access to.

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Adds tests for write lock

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Addresses #337
Makefile modifications, test modifications,
Lock tree is better integraded with db.

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Fixes the tests with a bound on the number of ranges, and fixes a bug
in lock tree unlock

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Added test of get_size to get code coverage again to 100%

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Lock tree freed during db->close.

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