OPAL-1744: Use fullname for filtering variable columns
OPAL-1754: Do not filter variables with magma when filter is *search with match(*)
OPAL-1744: Using the field _id to search for column name exact match instead of fullName.
Fixed css for filter, using same backgroundcolor for the clear as the input
Merge pull request #140 from emorency/master

OPAL-1744 and OPAL-1754