Adds TruncateTables() functionality for all dialects, + tests
Add SelectFloat helper methods to SqlExecutor interface
Merge pull request #64 from ottob/selectfloat

Add SelectFloat helper methods to SqlExecutor interface
Merge pull request #60 from purohit/master

Add TruncateTables() functionality
#63 - remove dead sql_test.go
Timestamp support

Tested with PostgreSQL
Uuid support

Tested with PostgreSQL
Merge branch 'develop' of https://github.com/ottob/gorp into develop