Merge pull request #48 from jgordor/master

Making date() a valid boss model datatype
Update src/db_adapters/boss_db_adapter_riak.erl

Fixed pagination bug.
Merge pull request #49 from Jasson/patch-1

Update src/db_adapters/boss_db_adapter_riak.erl
Encode UTF-8 as UTF-8, not Unicode points
Perform float conversion; update README re: boss_news
Always use record-NN in SQL adapters

Also, override column names with -column() attribute.
Support custom table names
Don't cache error values from find
Fix -export bug on R15B02+
Merge branch 'sql-use-full-id'
Fix -table() and -columns()