New release

Updated curl min required version

Added option to build static/dynamic library

Removed wrong get_info and is_finished methods. Now get_next_finished…

… returns a complete object including the related easy_handler. This should solve #76 and #90

curlcpp is now build as dynamic library, general fixes

General warning removal to fix #124

Removed biicode unused config file and fixed error described in issue #…

…127

Removed biicode unused config file and fixed error described in issue #…

…127

Fixed README.md examples.

Update .gitignore