Merge pull request #297 from argelius/master

Fixed "ons-modal" so line breaks are added automatically to long
Merge pull request #298 from argelius/master

Tests for "ons-alert-dialog"
Cleanup.
Added tests for "ons-dialog" and "ons-popover".
Fixed some broken tests.
Fixed broken demos.
Fixed broken list-header on ngRepeat.
Typo.
Fixed bug where "ons-loading-placeholder" didn't work for older
browsers.
Fixed bug where all ons-toolbar-buttons where given the same modifier.
Fixed broken Sliding menu template.