Disable compression minimapp by default

[pramodk]

To avoid compilation issues (which should be solved), I am disabling compression :

[ 46%] Building CXX object neuromapp/keyvalue/CMakeFiles/MPI_Exec_kv.dir/mpiexec.cpp.o
In file included from /Users/kumbhar/Downloads/neuromapp/test/compression/block_reading.cpp:16:
/Users/kumbhar/Downloads/neuromapp/neuromapp/compression/allocator.h:105:13: error: unknown type name 'constexpr'
            constexpr static char policy_name[] = "cstandard";
            ^
/Users/kumbhar/Downloads/neuromapp/neuromapp/compression/allocator.h:105:23: error: expected member name or ';' after declaration specifiers
            constexpr static char policy_name[] = "cstandard";
            ~~~~~~~~~ ^
/Users/kumbhar/Downloads/neuromapp/neuromapp/compression/allocator.h:49:88: error: use of enumeration in a nested name specifier is a C++11 extension
      [-Werror,-Wc++11-extensions]
                    throw cpu_memory_allocation("negative size, cpu cstandard policy", lengine_error::NEUROMAPP_BAD_ARG);
                                                                                       ^
/Users/kumbhar/Downloads/neuromapp/neuromapp/compression/allocator.h:51:84: error: use of enumeration in a nested name specifier is a C++11 extension
      [-Werror,-Wc++11-extensions]
                    throw cpu_memory_allocation("null size, cpu cstandard policy", lengine_error::NEUROMAPP_BAD_ARG);
                                                                                   ^
/Users/kumbhar/Downloads/neuromapp/neuromapp/compression/allocator.h:201:13: error: unknown type name 'constexpr'
            constexpr static char policy_name[] = "align";
            ^
/Users/kumbhar/Downloads/neuromapp/neuromapp/compression/allocator.h:201:23: error: expected member name or ';' after declaration specifiers

[fouriaux]

Can we have a ticket open to fix this issue before merging ?

[pramodk]

Ok, seems like clang specific problem.

[pramodk]

@fouriaux : done in #85. For now I am just updating README.
By the way, are you invisible? :)