Fix few problems with interpreter closures.


git-svn-id: https://fricas.svn.sourceforge.net/svnroot/fricas/trunk@1762 b0c55286-4f34-0410-a049-a1e7e93b0762
Do not use notangle during build.


git-svn-id: https://fricas.svn.sourceforge.net/svnroot/fricas/trunk@1763 b0c55286-4f34-0410-a049-a1e7e93b0762
Drop .pamphlet extension.


git-svn-id: https://fricas.svn.sourceforge.net/svnroot/fricas/trunk@1764 b0c55286-4f34-0410-a049-a1e7e93b0762