replace #include <ios> in FBString.h with lighter #include <iosfwd>
-rw-r--r-- 592 .gitignore
drwxr-xr-x - CMake
-rwxr-xr-x 22092 CMakeLists.txt
-rw-r--r-- 10174 LICENSE
-rw-r--r-- 6563 README.md
drwxr-xr-x - folly