before 1.0: fix http bug, package for osx

# other todos

the tools look for ...png, meaning that they'll re-download jpgs. should look for png too.

bug in get() & post(): if the \r\n\r\n after http headers is cut off between recv buffers

in getgbook, check that downloaded page doesn't match 'page not available' image; if so delete (as may be redownloadable later, perhaps even then with different cookies)

package for osx - https://github.com/kennethreitz/osx-gcc-installer

add https support to get (getabook can use it everywhere, others cannot)

write some little tests

submit 'pad' file to websites http://padsites.asp-software.org/