examples; connection sharing

http://stackoverflow.com/questions/15957821/how-to-make-mongoose-connection-available-globally
examples; add readme
fixed; setting nested mixed paths

closes #1418
fixed; numbericAlpha path versioning

was over-aggresive
Revert "Revert "added; support for awaitdata query option""

This reverts commit d87147da14c5117dd29313393764f0765a935faa.
Revert "Revert "added; mongos failover support""

This reverts commit af0d340537f75f2f0b224858bf54955d18402bb9.
pass all mongoose tests
Virtual Relate integrated -- all mongoose test passed.