move all explorer plugin files into subdirectory
treeb3bc7df4f5cc73b433e270984afaba73ad66bc8b
-rw-r--r-- 28 .gitignore
-rw-r--r-- 576 NOTES
-rw-r--r-- 270 README.txt
drwxr-xr-x - common
drwxr-xr-x - compat
drwxr-xr-x - explorer