Strip all undefined arguments in Gruta->url().
tree0b85cf0d4ce666a1fba294bea1efbf694369a42a
-rw-r--r-- 14 .gitignore
-rw-r--r-- 8243 Gruta.pm
drwxr-xr-x - Gruta
-rw-r--r-- 2589 INSTALL
-rw-r--r-- 614 Makefile.PL
-rw-r--r-- 448 README
-rw-r--r-- 2286 RELEASE_NOTES
-rw-r--r-- 4924 TODO
drwxr-xr-x - bin
drwxr-xr-x - examples
drwxr-xr-x - img
drwxr-xr-x - templates