ISIS-537 Use the bootstrapified versions of ISIS modules
ISIS-537 Bootstrapify isis-wicket-excel
ISIS-537 Change the label for the download link to "Download as Excel"
bumping version to 1.8.0-SNAPSHOT
changing dependency on Isis to 1.8.0-SNAPSHOT
ISIS-537 Use font icon instead of images for the "Show as" selector for collections views
merging 1.8.0-bootstratify with 1.7.0 release