Displays search hint always on top
Merge pull request #542 from nsendetzky/master

Fixes catalog search filter hint and improves browser back button handling
Unifies price handling and displays price details equally in all lists
Merge pull request #543 from nsendetzky/master

Unifies price handling and displays price details equally in all lists
Fixes costs per item in last seen list
Improves layout of delivery/payment list in checkout process
Fixes costs per item in suggestion list
Improves layout for tax rate in catalog detail view
Merge pull request #544 from nsendetzky/master

Improves layout of delivery/payment list and tax rate, fixes costs per item in lists
Only show language picker, if languages are available
Add getter for locale
Extends media view helper to support box and item tag attributes
Implements content view helper for generating URLs for images, files, etc.
Uses content and media view helpers where possible
Improves layout for service images in checkout process
Adds missing config parameter in default URL view helper
Removes duplicate language and currency definitions
Add a space between comboboxes
Merge pull request #545 from nsendetzky/master

Uses media and content view helpers to simplify and streamline templates
Implements creating demo data on request