Merge pull request #1 from lokedhs/master

Improve error handling
Merge pull request #2 from lokedhs/master

Fix compile error caused by the previous fix
Merge pull request #3 from lokedhs/master

Fix usage on OSX
Merge pull request #4 from lokedhs/master

Use conditions to handle decoding errors.
Remove (:unix "libiconv.so")

In linux iconv is in glibc.
There is not libiconv.so.
Merge branch 'master' of https://github.com/lokedhs/cl-iconv into lokedhs-master

Conflicts:
	iconv.lisp