webdriver module created
Fix PG DbTest::testHaveAndSeeInDatabase

- The test was failing because the value for lastInsertId when
using PG was always 0.
- As per http://www.php.net/manual/en/pdo.lastinsertid.php,
  PDO::lastInsertId for PG requires the sequence name. This fix
  guesses the sequence name based on the table. The test now passes.
Keep method signature the same to remove STRICT warnings
Merge pull request #500 from mohangk/fix_pg_driver3

Keep method signature the same to remove STRICT warnings
Merge pull request #499 from mohangk/fix_pg_driver2

Fix PG DbTest::testHaveAndSeeInDatabase
basic webdriver2 implementation
Fix PG DbTest::testDontSeeInDatabaseWithEmptyTable

- The Postgresql::select command was generating erroneous when the criteria was an empty array
- Updates the postgresql.sql dump to include empty_table
Merge pull request #503 from mohangk/fix_pg_driver

Fix PG DbTest::testDontSeeInDatabaseWithEmptyTable
webdriver and tests
merged with master
Fix PG DbTest::testDontSeeInDatabaseWithEmptyTable

- The Postgresql::select command was generating erroneous when the criteria was an empty array
- Updates the postgresql.sql dump to include empty_table
Merge pull request #505 from mohangk/fix_pg_driver

Keep method signatures the same
Return an instance of a class from the IoC Container
Fix delete sequences in PostgreSQL friver
Merge pull request #512 from itmages/bug/postgreSqlDriverSequencesDelete

Bug/postgre sql driver sequences delete
Merge pull request #509 from allmyitjason/patch-3

Return an instance of a class from the IoC Container
Merge branch '1.6' of github.com:Codeception/Codeception into 1.6
new module Sequence added
uptated webdriver, added maximize window function
changed wait method api