Started adding implementation of client-side functionality.

- Changed ts_api:dispatch_user/3 to return information for the user currently,
  authenticated if a valid session id is presented and no username is presented.
- Moved the generic styling of form > * elements to be specific to .bar > form.
- Added jQuery U 1.8.0.
- Created login dialog that will automatically load upon page load if the user
  is not logged in.
- Added styling for jQuery UI login dialog.
- Implemented login functionality on the client page.
- Implemented functionality to load user and timeline records on the client
  side.

www/css/ts-screen.scss

@@ -34,7 +34,7 @@ $iBorWidth: 0.2em;
 
 html {
     //background-color: $obg;
-    background: url('../img/loving_blu.png') repeat;
+    background: url('/img/loving_blu.png') repeat;
 }
 
 body {
@@ -94,7 +94,7 @@ body {
     @include rounded2(bottom, left, 0.5em);
 }
 
-form {
+.bar form {
 
     border-top: solid 1px $bbor;
     padding: 0.5em 0 0.5em 2em;
@@ -206,3 +206,24 @@ form {
 
     #new-entry-input { margin-right: 1em; }
 }
+
+#login-dialog {
+    font-size: small;
+
+    label, input { display: block }
+    input.text {
+        margin-bottom: 1em;
+        width: 95%;
+        padding: 0.4em;
+    }
+
+    form fieldset {
+        padding: 0; border: 0; margin: 0;
+    }
+
+    .validate-tips { display: none; }
+}
+
+#ui-dialog-title-login-dialog, .ui-dialog-buttonset {
+    font-size: medium;
+}