fix import paths
#67
the if doesn't work because the child parent relationship is not yet properly in place
#29
activate linter
upgrade to new polymer-flex-layout
#67
add workaround for build error
#51
add workaround for build error
#34
add workaround for build error
#50
add comment for workaround for missing mediaquery support in Dart
#52
Merge branch 'master' of github.com:ErikGrimes/polymer_elements
fix import paths
#67