bug #84 Display virtual columns (nlemahieu)
bug #84 Display virtual columns (nlemahieu)

This PR was merged into the master branch.

Discussion
----------

Display virtual columns

There was a problem during the display of the virtual columns.
In the twig extension we try to match the field type to know in what format we need to display the value.
By definition a virtual columns does not have any type, so we always send a empty string. So to be sure, if at the end we didn't find the good type we return a string cast of the value.

Commits
-------

26904ad Fix virtual columns display

alexgt9/EasyAdminBundle,thomasbeaujean/EasyAdminBundle,gabiudrescu/EasyAdminBundle,kamilZ/EasyAdminBundle,javiereguiluz/EasyAdminBundle,Seanmcn/EasyAdminBundle,OskarStark/EasyAdminBundle,OskarStark/EasyAdminBundle,ogizanagi/EasyAdminBundle,datagit/EasyAdminBundle,kamilZ/EasyAdminBundle,ogizanagi/EasyAdminBundle,datagit/EasyAdminBundle,npotier/EasyAdminBundle,datagit/EasyAdminBundle,javiereguiluz/EasyAdminBundle,npotier/EasyAdminBundle,thomasbeaujean/EasyAdminBundle,yceruto/EasyAdminBundle,ogizanagi/EasyAdminBundle,yceruto/EasyAdminBundle,alexgt9/EasyAdminBundle,thomasbeaujean/EasyAdminBundle,kamilZ/EasyAdminBundle,alexgt9/EasyAdminBundle,seydu/EasyAdminBundle,OskarStark/EasyAdminBundle,peterkokot/EasyAdminBundle,yceruto/EasyAdminBundle,seydu/EasyAdminBundle,ogizanagi/EasyAdminBundle,gabiudrescu/EasyAdminBundle,seydu/EasyAdminBundle,gabiudrescu/EasyAdminBundle