Minimized polymer and webcomponents
Revert "Minimized polymer and webcomponents"

This reverts commit 43ffa6a7a12ad3b7396f0c588d2c23b50bb7bcb5.
Revert "Added Polymer for navigation"

This reverts commit b61a68970efa20f54362bec98becc35271329eea.
Reverting all polymer stuff because of bootrap incompatibility and re-adding optimized images