Move void-safe FreeELKS inside EiffelBase

git-svn-id: https://svn.eiffel.com/eiffelstudio/trunk/Src/library/base/elks@92189 8089f293-4706-0410-a29e-feb5c42a2edf
Replaced external link with actual code of FreeELKS for that particular revision.

git-svn-id: https://svn.eiffel.com/eiffelstudio/trunk/Src/library/base/elks@92205 8089f293-4706-0410-a29e-feb5c42a2edf
Removed invalid commit.


git-svn-id: https://svn.eiffel.com/eiffelstudio/trunk/Src/library/base/elks@92206 8089f293-4706-0410-a29e-feb5c42a2edf
Merge branch 'master' of github.com:EiffelSoftware/FreeELKS