aterm v.0.2.0
*Converted documentation to aterm vs. rxvt
*src/features.h [ATERM_PATH_ENV]: Added ATERMPATH env. variable to 
 define PATH where to search for files. Aterm is now looking in ATERMPATH,
 then RXVTPATH, and only then in PATH.
* --enable-transparency and --enable-next-scroll are now set by default.
 