Integrate new help

[deinhofer]

Fixes #45

Adds the new webbased generic help system (https://github.com/asterics/AsTeRICS-help) as a git submodule with name 'help' to the following locations:

• bin/ACS/help
  • help/help_files contains a local copy of ARE, plugins and C#-ACS help
  • ACS.exe now either opens help/index.html of local filesystem, if ACS is not connected or opens http://localhost:8081/help/index.html if ACS is connected to an ARE
• bin/ARE/web/help
  • can be opened with http://localhost:8081/help/
  • help/help_files contains a local copy of ARE, plugins and C#-ACS help
• bin/ARE/web/webapps/WebACS/help/ (indirectly through WebACS submodule)
  • can be opened with http://localhost:8081/webapps/WebACS/help/
  • help/help_files contains a local copy of WebACS help and links to ARE and plugins help of bin/ARE/web/help

The hosted versions now use the generated component collection http://localhost:8081/componentCollections/defaultComponentCollection.abd, so the status of plugin-help of an ARE should be synchronous to the installed plugins of an ARE.

There are new targets in the root build.xml flle:

• copyHelpFiles: Copies the contents to the respective help/help_files folders
• cleanHelpFiles: Cleans the contents of all help/help_files folders

To update the changes including the submodules call:

git pull --recurse-submodules git submodule update --init --recursive