make new version notification noticeable
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
-NewVersionAvailable=New version of Jenkins ({0}) is available for <a href="{1}">download</a> \
+NewVersionAvailable=<strong>New version of Jenkins ({0}) is available</strong> for <a href="{1}">download</a> \
(<a href="{2}">changelog</a>).
ChangelogUrl=${changelog.url}
UpgradeComplete=Upgrade to Jenkins {0} is complete, awaiting <a href="{1}/safeRestart">restart</a>.
