New upstream release.
    
    Also:
    - Drop upstreamed -paths patch.
    - Add -bootstrap patch to break circular build dependencies.
    - Add -escape, -ref, -doc, -gac, and -immutable patches.
    - Add -terminal, -erroroutput, and -enterleave patches from sagemath.
    - Add libgap and libgap-devel subpackages.
    - Move the commandline application into the main package.
    - Change BRs and Rs due to recent TeXLive packaging changes.
    - Create all of the icon sizes supported by hicolor-icon-theme.
    - Fix update-gap-workspace on initial build with empty workspace.
    - Disable hardened build, which breaks RTLD_LAZY in the module loader.
    - Build in bootstrap mode.