MINOR: better Config for inline editable grid

The docs should only provide such a basic, fully working example
Merge pull request #4 from Zauberfisch/patch-1

Tweak the inline editing example config.
Persist new rows in between grid reloads. Closes #5.
Fix incorrect property accessing.
Fix sort values not being populated.
Change the default fragment.
Make the title and fragment configurable.
Add a basic column header component. Closes #7.
Add documentation screenshots
Estonian translation added
Merge pull request #10 from priithansen/master

Added Estonian translation
Fix inline editing when no extra fields were defined. Closes #9.
Added dutch language
Merge pull request #15 from ARNHOE/patch-1

Added dutch language
Fix search list border radius when a single item was displayed
Allow setting a custom search items list

Closes #13. Closes #14.
MINOR: return  on all setters (fixes #16)