Merge pull request #8 from mangulski-neducatio/2.4

Retrieving locale information from application parameters in translate m...
Merge pull request #14 from mangulski-neducatio/2.4

Session added to BasePageObject and database changed to Sqlite
Merge pull request #15 from mangulski-neducatio/2.4

Auto logout previous user if somebody try to login in WebClientRetriever