Accessibility fixes:

	- changed buttons to spans since not being used in forms
	- added aria roles to html elements
	- changed low contrast colors

Change-Id: I56e784b226baa7f9b24346446a0a023fcea633d4
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/server-control/controllers/bmc-reboot-controller.html b/app/server-control/controllers/bmc-reboot-controller.html
index b7ffd39..0468a8f 100644
--- a/app/server-control/controllers/bmc-reboot-controller.html
+++ b/app/server-control/controllers/bmc-reboot-controller.html
@@ -14,14 +14,13 @@
 		<div class="bmc-reboot-option" ng-class="{disabled: dataService.server_unreachable || dataService.loading, transitionAll: confirm}">
 			<p>When you reboot the BMC, your web browser loses contact with the BMC for several minutes. When the BMC is back online, you must log in again. If the Log In button is not available when the BMC is brought back online, close your web browser. Then, reopen the web browser and enter your BMC IP address.</p>
 			<confirm title="Reboot the BMC"
-					message="Rebooting the BMC causes your browser to lose contact with the BMC for several minutes."
 					confirm="confirm"
 					ng-show="confirm"
 					callback="reboot"></confirm>
 		</div>
 	</div>
 	<div class="row column">
-		<button id="bmc__reboot" class="btn-secondary float-right" ng-click="rebootConfirm()" ng-disabled="dataService.server_unreachable">
+		<button id="bmc__reboot" class="btn-secondary float-right" ng-class="{disabled: confirm}" ng-click="rebootConfirm()" ng-disabled="dataService.server_unreachable">
 			<i>&#x21BB</i> Reboot BMC
 		</button>
 	</div>