Merge branch 'master.msvc.support' of git://github.com/AlexeiSheplyakov/GiNaC
* 'master.msvc.support' of git://github.com/AlexeiSheplyakov/GiNaC:
Omit extra qualification (as in struct foo f() vs foo f()).
[msvc] msvc cannot handle string constants above 16k
[msvc] Yet another compiler bug work around.
[msvc] Work around strange scoping and name mangling rules.
Add few defines for msvc (__func__, __alignof__).
symmetry::compare_same_type(): const-correctness fix
clifford: fix a few GCCisms (or, not).