Resolve issue where default_scope attributes were conflicting with imported columns. DO NOT import default scope values as that defies intuition since they're not typically used to populate default field values.

[#78]
Re-arrange the order of checking for the primary key to issue a 
"prefetch_primary_key?" before trying to generate it from sequence_name. This resolves an issue with postgresql adapter blowing up when a primary key can't be fetched.

[#78]
Merge branch '78_default_scope_issue'
Updating README to indicate Rails 3.0.x support was dropped in activerecord-import 0.3.0. 

[#76]
Make sure importing serialized fields is tested. Untested changes were introduced in 1ae5122
Merge branch '76_v0.3.0_breaks_rails_less_than_3.1'
Merge branch 'serialized_field_specs'
Add support for SQLite3's multi value INSERTs.

[#74]
Merge branch '74_sqlite_insert_value_statements'
Adding examples around SQLite3's mulit-value INSERT statement support.

[#74]
Merge branch '74_sqlite_insert_value_statements'
Version bump to 0.3.1
SQLite3 3.7.11 introduces multiple row inserts
Merge pull request #84 from sl4m/sqlite3_min_version

SQLite3 3.7.11 introduces multiple row inserts
Update git ignores.
Get rid of Jeweler, rubygems and bundler can do the same job, but better.
KIll some whitespaces.
Update AR syntax.
Make sure we're in the same timezone.
Add missed update for new GF syntax.