Doc: Changed CSS text-align from "justify" to "left".

-Documentation looks weird when viewed in a narrow window because
 much of the text are long.
-Qt Project's CSS uses "left".
-This change affects any documentation which uses the global
 templates.

Change-Id: I8605a191904cb727b4818d8a1abf127ce2e45eb9
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

doc/global/template/style/offline.css

@@ -3,7 +3,7 @@ body {
     margin-top: 85px;
     font-family: Arial, Helvetica;
     color: #313131;
-    text-align: justify;
+    text-align: left;
     margin-left: 5px;
     margin-right: 5px;
 }
@@ -38,7 +38,7 @@ img {
     margin-top: 35px;
     /*max-width: 75%;*/
     margin-left: 5px;
-    text-align: justify;
+    text-align: left;
     vertical-align: top;
 }
 

doc/global/template/style/online.css

@@ -24,7 +24,7 @@ img {
     margin-top: 35px;
     /*max-width: 75%;*/
     margin-left: 5px;
-    text-align: justify;
+    text-align: left;
     vertical-align: top;
 }