Updating documentation, booktest examples

- Moving booktest examples to own subdirectory
- Updating documentation to point to examples
- Fixing some minor issues with Oracle contrib scripts
- Renamed templates/tpls.go -> templates/templates.go

.gitignore

@@ -1,10 +1,6 @@
 /xo
-/examples/postgres/postgres
-/examples/mysql/mysql
-/examples/sqlite3/sqlite3
-/examples/oracle/oracle
-/examples/mssql/mssql
 /x
 /out
-/*.xo.go
+
 *.sqlite3
+*.sqlite3-journal