show error message again at bottom of xpath editor
Merge pull request #94 from dimagi/xform-error-fix

show error message again at bottom of xpath editor
only mark editor as active when a change has been made
fix hover
Merge pull request #98 from dimagi/qtree-hover

fix hover
Merge pull request #97 from dimagi/xpath-save

only mark editor as active when a change has been made
Merge branch 'master' of github.com:dimagi/Vellum into cleanup