Update btSoftBodyHelpers.cpp

Fix clang compiler error

error: non-constant-expression cannot be narrowed from type 'unsigned int' to 'int' in initializer list [-Wc++11-narrowing]
note: override this message by inserting an explicit cast -> done
Update pixel_buffer_lock.h



fix undeclared identifier

/usr/local/include/ClanLib-3.0/ClanLib/Display/Image/pixel_buffer_lock.h:119:11: error: use of undeclared identifier 'Exception'
throw Exception("Incorrect PixelBufferLock constructor called with a GPU pixelbuffer");
Update chain_shape.cpp

fixed bad deallocator.
Merge pull request #13 from punkkeks/patch-3

Update chain_shape.cpp
Merge pull request #12 from punkkeks/patch-2

Update pixel_buffer_lock.h
Merge pull request #9 from punkkeks/patch-1

Update btSoftBodyHelpers.cpp
Merge branch 'master' of github.com:sphair/CLanLib