Misc CSS fixes

  * set max content width to 960px
  * created mixin for bold font
  * move app-header content to global header
  * minor global changes
  * changed input alignment for network config inputs
  * added pop-out button class
  * changed lightgrey color
  * fixed accordion header actions responsiveness
  * fixed input box border colors

Change-Id: Iffe26d526439d7f2bb6808528a975ab7374ff1b2
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/styles/base/utility.scss b/app/common/styles/base/utility.scss
index 5982d0f..80449f5 100644
--- a/app/common/styles/base/utility.scss
+++ b/app/common/styles/base/utility.scss
@@ -53,19 +53,19 @@
 }
 
 .no-margin {
-  margin: 0px !important;
+  margin: 0 !important;
 }
 
 .no-padding {
-  padding:0px !important;
+  padding:0 !important;
 }
 
 .no-bottom-margin {
-  margin-bottom: 0px !important;
+  margin-bottom: 0 !important;
 }
 
 .no-top-margin {
-  margin-top: 0px !important;
+  margin-top: 0 !important;
 }
 
 .btm-border-grey {