License fix

[ThilinaManamgoda]

No description provided.

[stain]

This pull request includes changes that are no longer relevant after we moved out biocatalogue perspective. (Also I am not sure how we found it was the WTF license for those gifs?)

A good idea before a pull request is to do a git fetch apache followed by git rebase apache/master -- assuming you have already done git remote add apache https://github.com/apache/incubator-taverna-workbench.

Sometimes this may lead to conflicts that needs to be resolved locally before pushing to GitHub - see https://git-scm.com/book/en/v2/Git-Branching-Rebasing

The three replacement icons for cross/dot product seem OK.

Perhaps you can try your maandev@apache.org git write access to add those icons separately..? See https://taverna.incubator.apache.org/code for the git-wip-us.apache.org server details for incubator-taverna-workbench.