Removed obsolete calls, harmonized predefine response, added non admin user pages.

When access is denied, also provide when possible and wanted, the needed
permissions so that in the future, user will be able to ask for
permission easily.
Renamed previous user handlers as admin user handlers.
Added non admin user handler /user/{uid} .
Add new `send_...` response to `CMS_API.response_api`, and use them
instead of `create {...RESPONSE}.... ; execute`.
Fixed potential issue with storage mailer initialization if folder does
not exist.
Added utf_8_encoded helpers function on CMS_API interface.
Fixed a few unicode potential issues.
Removed a few obsolete calls.

examples/demo/site/themes/admin/assets/scss/style.scss

@@ -0,0 +1,110 @@
+ul.horizontal {
+	li {
+		display: inline-block;
+	}
+}
+
+#header {
+	#primary.menu {
+		ul {
+			li {
+				color: #555;
+				a { 
+					color: #555; 
+					text-decoration: none;
+					&:hover { color: black; }
+				}
+				background-color: #fff;
+				padding: 10px;
+				margin: 0;
+			}
+			&.horizontal {
+				border-bottom: solid 1px #ddd;
+				li {
+					border-top: solid 3px #fff;
+					&:hover {
+						background-color: #ffe;
+						border-top: solid 3px #999;
+					}
+					&.active {
+						font-weight: bold;
+						border-top: solid 3px #ddd;
+						background-color: #ddd;
+					}
+					&.active:hover {
+						border-top: solid 3px blue;
+					}
+				}
+			}
+		}
+	}
+}
+#content {
+	margin-left: 20px;
+	#highlighted {
+		position: relative;
+		border: solid 1px #ddd;
+		background-color: #ffc;
+		width: 70%;
+		left: 15%;
+		right: 15%;
+		padding: 5px;
+		font-style: italic;
+	}
+	.preview {
+		border: solid 1px red;
+	}
+}
+.sidebar {
+	padding: 5px;
+	margin: 3px;
+	/* border: solid 1px #ccc; */
+	&#sidebar_first {
+		width: 250px;
+		position: fixed;
+		top: 45px;
+		left: 0;
+		bottom: 0;
+		width: 200px;
+		border-right: solid 1px #ddd;
+	}
+	&#sidebar_second {
+		width: 250px;
+		float: right;
+	}
+
+	&+.main {
+		margin-left: 200px;
+	}
+}
+#primary-tabs {
+	ul.horizontal {
+		list-style-type: none;
+		li {
+			display: inline;
+			padding: 2px 5px;
+			border: solid 1px #ccf;
+		}
+		li.active {
+			border-color: #99f #99f #ddd;
+			border-style: solid solid none;
+			border-width: 2px 1px 0;
+			padding: 2px 7px 1px;
+		}
+	}
+}
+#message li.error {
+	background-color: #f99;
+	border: solid 1px red;
+	padding: 5px 2px 5px 2px;
+}
+
+table.with_border {
+	thead td {
+		font-weight: bold;
+	}
+	td {
+		border: solid 1px #ccc;
+		padding: 2px 5px 2px 5px;
+	}
+}

examples/demo/site/themes/admin/debug.tpl

@@ -0,0 +1,38 @@
+{assign name="debug_enabled" value="True"/}
+{if condition="$debug_enabled"}
+<!-- start debug -->
+{literal}
+	<style>
+		div.cms-debug>span {
+			position: absolute;
+			bottom: 5px;
+			right: 5px;
+			color: #ccc;
+			padding: 5px;
+		}
+		div.cms-debug:hover>span {
+			color: red;
+		}
+		div.cms-debug>span+ul {
+			display: none;
+			border: solid 2px red;
+			background-color: #ccc;
+			white-space: pre-wrap;
+		}
+		div.cms-debug:hover>span+ul {
+			display: block;
+			position: relative;
+			bottom: 5px;
+			left: 1%; right: 1%;
+			width: 98%;
+		}
+	</style>
+{/literal}
+<div class="cms-debug"><span>Show debug</span>
+<ul>
+{assign name="kpage" value="page"/}{assign name="kregions" value="regions"/}{foreach key="k" item="i" from="$page.variables"}{unless condition="$k ~ $kpage"}{unless condition="$k ~ $kregions"}<li><strong>{$k/}</strong>={htmlentities}{$i/}{/htmlentities}</li>{/unless}{/unless}
+{/foreach}
+</ul>
+</div>
+<!-- end debug -->
+{/if}