Fixes #136 but only if <column> does not specify a label attribute or
the label attribute is empty.
Added some sanity checks
GrusConnection is now more resilient to duplicate connection frees.
Merge branch 'master' of git@github.com:Dexels/navajo.git
setInstanceId is now protected, as it should.
Release of com.dexels.navajo.adapters version 1.1.50
Development stream of com.dexels.navajo.adapters version 1.1.51
upgrade adapters: improvements on GrusConnection for duplicate frees.
Merge branch 'master' into sportlink