1.4.6

Fixes:

• Several corrections in the README
• Making clear that valueint should not be written to
• Fix overflow detection in ensure (2683d4d)
• Fix a potential null pointer dereference in cJSON_Utils (795c3ac)
• Replace incorrect sizeof('\0') with sizeof("") (84237ff)
• Add caveats section to the README (50b3c30)
• Make cJSON locale independent (#146) Thanks @peterh for reporting
• Fix compiling without CMake with MSVC (#147) Thanks @dertuxmalwieder for reporting