Fix for broken links from Danel James.



[SVN r51797]
Consolidated some redundant macros.  Made BOOST_SIGNALS2_SLOT_MAX_BINDING_ARGS
settable by user.


[SVN r52372]
signals2/signal.hpp does not need to include signals2/shared_connection_block.hpp.


[SVN r52385]
Fixed compile errors in c++0x mode.



[SVN r52404]
Fix c++0x perfect forwarding for deconstruct.


[SVN r52477]
Trying to fix compile problems on msvc 9 in release mode.



[SVN r52627]
Added some equality comparison operators for stack_allocator.



[SVN r52654]
Fix for some compile warnings from Kyle Girard <theycallmecoach@gmail.com>.



[SVN r52659]
Added ability to create a shared_connection_block which is initially
not blocking.



[SVN r53091]
Made shared_connection_block default constructible.  Split shared_connection_block
tests out of deletion_test, and added a little test for a 
default-constructed shared_connection_block.


[SVN r53128]
Added explicit documentation of shared_connection_block's default
copy constructor and assignment operator.



[SVN r53130]
Added shared_connection_block::connection() query, and a
connection::operator!=().  Added a test of shared_connection_block
assignment.


[SVN r53131]
Renamed a method group since blocking() is also a query.


[SVN r53132]
Patch from Richard Webb for msvc10 compile error, refs #3091



[SVN r53294]
Added a little test of a signal taking a reference argument.



[SVN r53310]
Use BOOST_NO_VARIADIC_TEMPLATES instead of BOOST_HAS_VARIADIC_TMPL, etc.



[SVN r53353]
Tweaked #include directives a little.


[SVN r53354]
Added variadic signal/slot implementations used when 
BOOST_NO_VARIADIC_TEMPLATES is not defined.  The
signal0, signal1, etc classes are not available when using
the variadic implementations, I plan to mark them as
deprecated.  Also the arg1_type, arg2_type member typedefs
are not available and are replaced with a "arg" member
template class.  Documentation updates to follow.



[SVN r53355]
Added some files I forgot to add with changeset [53355]



[SVN r53356]
Added signature_type member typedef to variadic signal implementation.
Also added it to slot classes.



[SVN r53359]