[bugfix] collection completion in CLI client

tab-completion does not double the first character of the completed collection name any more
Adding product-version (and git commit ID) to launcher spash screen
Merge pull request #288 from ljo/feature/add-product-version-to-launcher-spash-screen

Adding product-version (and git commit ID) to launcher spash screen
Merge pull request #282 from ljo/develop

Adding more unversioned or changed by build files to .gitignore. Sorting...
Merge pull request #287 from opax/cli-client-fix

[bugfix] collection completion in CLI client