logic: Show overview of analyzed symbols after launch

* show analysed nodes as bundles in graph
* ellide node names longer than 50 chars
* sort nodes alphabetic in these bundles
* show stats of analysis in code
* error are displayed as well in overview
* added keywords overview and error
* project description can be set in .coatiproject file
* description can include links to symbols using [symbol] syntax
* updated documentation
* increased toc nesting in documentation

bin/app/data/ProjectSettings_template.xml

@@ -7,6 +7,10 @@
 <!-- COLOR: int int int int - rgba e.g. 125 125 125 255 -->
 
 <config>
+	<info>
+		<description><!-- STRING: optional description shown in overview. Symbols can be linked with syntax [main] --></description>
+	</info>
+
 	<language_settings>
 		<language><!-- STRING: name of the language, e.g. c, c++, spanish, greek, greek++,... --></language>
 		<standard><!-- STRING: language version, e.g. c++ '11' --></standard>