ps: use setpagedevice to set page size

https://bugs.freedesktop.org/show_bug.cgi?id=73452
ps: cairo_set_page_size does not need to be in eps output
ps: add font DSC comments
type1: strip space from end of font name
cairo svg: Use \n instead of /n in bitmap fonts

Signed-off-by: Uli Schlachter <psychon@znc.in>