Fixed ofstd_tatof error on older MSVC versions.

Older MSVC versions handle underflows incorrectly, therefore
the respective test is skipped on these compilers.
Fixed DCMTK-Exports for custom module setups.

The variable 'DCMTK_MODULES' is now honored while generating exports,
to skip modules the user removed from the build.
Fixed and suppressed some warnings.

Fixed a warning about int / OFBool conversion and suppressed some (silly)
MSVC warnings.
Added 'DCMTK_USE_CXX11_STL' and 'DCMTK_CXX11_FLAGS'.

These flags control DCMTK's behavior regarding C++11 features.
DCMTK_USE_CXX11_STL may be used to switch between DCMTK's own classes and
the respective native C++11 implementations. DCMTK will try to set the
appropriate CXX_FLAGS to enable C++11 when DCMTK_USE_CXX11_STL is set.
DCMTK_CXX11_FLAGS may be used to override which CXX_FLAGS DCMTK sets, for
example to use C++14 instead of C++11.
Updated manpages.
Updated DCMTK_ABI_VERSION for new development snapshot.
Added missing empty line.
Fixed typos and other minor issues.
Updated reference to DICOM standard edition.
Clarified an ambiguous configure message.
Removed misleading comment in dcmjpeg.
Updated DCMTK's copyright date.
Added support for CP-1125 to SR implementation.

Added support for CP-1125, which adds the attribute Protocol Name (0018,1030)
to both SR Document Series Module and Key Object Document Series Module.