Move off of <base/safe_global>

Statics inside functions are well-defined in terms of initalization guarantees with C++11. Use those instead.
jhm: Fix bug where if you delete the actual file we didn't notice
Change NO_DEFAULT_CASE to allow compilers to warn if not all cases in an enum are covered.

If you want to assert more than one case is unreachable, use DEFAULT_UNREACHABLE;
Removed uses of gcc internal, std::_Tuple_impl and updated Base::Join.
Provided Concat which is equivalent to Join(container, "").
Don't insert  since it results in a '\0' being inserted.
Twitter EGO-network importer for and the ABXY query.
Use <jhm/naming> properly so you don't have to end PackageDir with a '/'
Merge pull request #131 from cmaloney/pkgdir_path

Use <jhm/naming> properly so you don't have to end PackageDir with a '/'
Merge pull request #129 from mpark/tuple

Removed uses of gcc internal, std::_Tuple_impl and updated Base::Join.
Use <jhm/naming.h> instead of boost/filesystem.
Make AsStr variadic.
orly/data: TUuid construction suffered from the most vexing parse.
Merge pull request #130 from mpark/abxy

ABXY query
Merge pull request #132 from cmaloney/vexing-parse

orly/data: TUuid construction suffered from the most vexing parse.
Merge pull request #128 from cmaloney/rm-safe-global

Move off of <base/safe_global>