Fix install instructions so wget output file and tar extraction file match
move ./bin to front of PATH

If ./bin exists in the PATH, move it to the front of PATH so that gem
executables in the ./bin binstubs dir get chosen over the ones from the
gem installation.
echo copied files during make install
fix ./bin path check
ignore warning when prepending ./bin to path
Merge pull request #5 from alexebird/master

Fix overridden binstubs ./bin dir, install instructions