Move Singleton out of folly/experimental into folly/
tree180c64392c77dc496c234b7bf494dc19ac40fe97
-rw-r--r-- 1341 .gitignore
-rw-r--r-- 98 .gitmodules
drwxr-xr-x - CMake
-rw-r--r-- 1505 CMakeLists.txt
-rw-r--r-- 3228 CONTRIBUTING.md
-rw-r--r-- 3204 LICENSE.PHP
-rw-r--r-- 2803 LICENSE.ZEND
-rw-r--r-- 55862 NEWS
-rw-r--r-- 2827 README.md
-rwxr-xr-x 642 configure
-rwxr-xr-x 6650 configure_generic.sh
drwxr-xr-x - hphp
m--------- - third-party