added sqlparse dependency

`%load_ext ipydb` fails if sqlparse is not installed.
Merge pull request #3 from krockode/patch-2

added sqlparse dependency
add utils
Merge branch 'master' of https://github.com/jaysw/ipydb
shush
transactions bug
package renaming
%sql -o FILE: save output to a file. works well with %sqlformat csv
automatically start a transaction when insert/update/deleting data
start workon on running delimited sql scripts
implement %run_sql_script for external sql script files
spaces
name change and completion for %runsql
only when connected
Merge branch 'master' into reflect_keys