Fixes that allow for compilation in -std=c++11 mode of gcc 4.7.2.

In every case the problem was two double-quotes toget '""' in string literals which
is no longer valid in C++ 2011.
Don't overwrite CMAKE_BUILD_TYPE=Debug*

Don't overwrite CMAKE_BUILD_TYPE with Release
just because OCE_BUILD_TYPE is not defined.
Merge branch 'no-overwrite-CMAKE_BUILD_TYPE' into stellar-master