package libf2c: update checksum
package vtk: fix configure of native build for missing X11/OSMesa libraries
package vtk6: fix for standalone native build without rendering
package vtk6: reverse standalone patch for cross build
Revert "package vtk6: reverse standalone patch for cross build"

This reverts commit 76a176ba178d72440fb6504bcf89f5129a7808ed.
Revert "package vtk6: fix for standalone native build without rendering"

This reverts commit b7a8dc442fb51e156827e26c03c52a99b09912ed.
package vtk6: drop native OpenGL dependency
package vtk6: strip down native configure to required compile tools
package vtk6: add vtkParseOGLExt to CompileTools group
doc update: note that MXE is not relocatable
doc update: improve naming of MAXR
doc update: add Galois to the list of projects which use MXE
Revert "doc update: improve naming of MAXR"

This reverts commit e46546cae0b6288fadaadf8c7d532e9faf58d0a2.
Add documentation of `make update-checksum-*`

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Merge pull request #334 from TimothyGu/stable-s

Add documentation of `make update-checksum-*`
doc update: add legal notes

from a long time ago:
http://lists.nongnu.org/archive/html/mingw-cross-env-list/2011-03/msg00107.html
doc update: add GNU Licenses FAQ