Revert "Merging layout changes into feature branch"

This reverts commit 0d33afe533199f4fb6cb08cf73fc9a923b43609e, reversing
changes made to 593406a8a51cfca3d82e173cddfe7cb22650aea9.
Moving away from javaplanner plugin. Using bootstrap plugin instead.
Revert "Implementing javaplanner plugin."

This reverts commit 593406a8a51cfca3d82e173cddfe7cb22650aea9.