Set release version 5.1.0

Change-Id: Iec560ec74e59a7eb2a6b80c4a9412270b8245598
Next development version 5.1.1-SNAPSHOT

Change-Id: I5f4007d2e5dcb1e3fc02358d4cd4536e03cef586
added some webjars + geppeaquo in dep mngmt

Change-Id: I5fb1a1bec9f87c60572e3d9ea16e23eafdf07ee0