Update README.md
Moved fixture classes to separated files
Merge pull request #65 from norzechowicz/sensio-insight

Moved fixture classes to separated files
Removed unused use statements
Merge pull request #66 from norzechowicz/sensio-insight

Removed unused use statements
Fixed path to form theme template
Updated configuration.md
Added link to demo app
Added change language of admin panel dropdown
Display language dropdown only when display_language_switch parameters is set to be true
Merge pull request #67 from norzechowicz/change-language

Added change language of admin panel dropdown
Added info about translations to docs
Changed composer install to update at travis
Merge pull request #68 from norzechowicz/readme

Added info about translations to docs