Stanford Trio installation

Key 1: there is no src code for supplied triospi binary (.so/.dll) therefore it only works for 32bit linux with postgresql 8.2/8.3, or 32bit python/postgresql on windows. MacOS was not tested.
Key 2: Trio requires md5 authentication for newly created user but itself should be run under default authentication for user running TrioExplorer (also TrioExplorer user must be added to postgresql first).

1. I had hard time logging into postgresql with postgres under linux, fortunately it can be solved by sudo -u postgres psql (you can't su into postgres user account).
2. The added user name should match the user running TrioExplorer, and a database with same name should be created for the user. Also for linux, plpgsql requires manual activation: createlang plpgsql template1.
3. Changing default login method for postgresql is done by modifying pg_hba.conf. Change login to md5 for local all all [ident/peer/etc] line. Another line for user running TrioExplorer should be added with default login method.