minor symfony#101 Rebranded the application as "Symfony Demo" (javiereguiluz)

This PR was squashed before being merged into the master branch (closes symfony#101).

Discussion
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Rebranded the application as "Symfony Demo"

This fixes symfony#85

Commits
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6908653 Rebranded the application as "Symfony Demo"

Author: javiereguiluz

app/Resources/translations/messages.cs.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Vítejte v <strong>Symfony demo aplikaci</strong>]]></target>
+                <target><![CDATA[Vítejte v <strong>Symfony Demo</strong> aplikaci]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.de.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Willkommen zur <strong>Symfony Demo Application</strong>]]></target>
+                <target><![CDATA[Willkommen zur <strong>Symfony Demo</strong> Anwendung]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.en.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Welcome to the <strong>Symfony Demo Application</strong>]]></target>
+                <target><![CDATA[Welcome to the <strong>Symfony Demo</strong> application]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.es.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Bienvenido/a a la <strong>Aplicación Demo de Symfony</strong>]]></target>
+                <target><![CDATA[Bienvenido/a a la aplicación <strong>Symfony Demo</strong>]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.fr.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Bienvenue sur l'<strong>application de démonstration Symfony</strong>]]></target>
+                <target><![CDATA[Bienvenue sur l'application <strong>Symfony Demo</strong>]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.pt_BR.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Bem-vindo à <strong>aplicação de demonstração do Symfony</strong>]]></target>
+                <target><![CDATA[Bem-vindo à aplicação <strong>Symfony Demo</strong>]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.ru.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Добро пожаловать в <strong>Symfony Демо Приложение</strong>]]></target>
+                <target><![CDATA[Добро пожаловать в <strong>Symfony Demo</strong> приложение]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/translations/messages.uk.xliff

@@ -21,7 +21,7 @@
 
             <trans-unit id="title.homepage">
                 <source>title.homepage</source>
-                <target><![CDATA[Ласкаво просимо до <strong>Symfony Демо Додатку</strong>]]></target>
+                <target><![CDATA[Ласкаво просимо до <strong>Symfony Demo</strong> додатку]]></target>
             </trans-unit>
             <trans-unit id="title.source_code">
                 <source>title.source_code</source>

app/Resources/views/base.html.twig

@@ -7,7 +7,7 @@
 <html>
     <head>
         <meta charset="UTF-8" />
-        <title>{% block title %}Symfony Demo Application{% endblock %}</title>
+        <title>{% block title %}Symfony Demo application{% endblock %}</title>
 
         {% block stylesheets %}
         {# uncomment the following lines to compile SCSS assets with Assetic
@@ -35,7 +35,7 @@
                     <div class="container">
                         <div class="navbar-header">
                             <a class="navbar-brand" href="{{ path('homepage') }}">
-                                Symfony Demo Application
+                                Symfony Demo
                             </a>
 
                             <button type="button" class="navbar-toggle"