adds 404 pages for planning suite apps fixes #89
fixes #174 , result tree links in validate plan, clean up
fixes #142 alternatives with whitespace in overlong names

in the UI we prevent alternative names longer then 30 characters
But if alternatives are created from services, they might be too long
and have to be truncated.
If the name contains whitespaces, it could happen that the truncated name had trailing whitespace,
this can cause troubles ( see #169 ).
Now truncated names are trimmed.
Adjusted myExperiment integration to updated component ontology
Read multiple migration path annotations fixes #201
introduces read only mode for plans

* introduces read only mode for plans( #198 )
  - open plans can now be opened in read only mode
  - public plans are now only accessible in read only mode
    for users beside the owner and its group members.
  - One cannot export plans in view mode,
    but only create copies which can be edited as usual.
* changes layout
completes read only plans, fixes #198
fixes plan copy
trying to find a replacement for goldin plugin #196
removed goldin's copy-maven plugin, fixes #196
adds draft of new readme
integrates current readme into this structure
updates _readme

adds publications and specifies roadmap
Update _README.md
Update _README.md

adds links to external resources and tools
Update _README.md

removes info on commercial support
updates README file to template
Update README.md
adds simple notifications

* adds simple user centered notifications #202
* adjusts QLDs to Component Ontology
Update QLDGenerator.java

qlds for SourceObject's should be ignored, not TargetObjects!