Updated phpspec for newest version. Migrate specs.
Try to fix travis builds.
Configure build, with issue with php 5.3 at travis.
Add "--no-interaction" to composer install command at travis.
Merge pull request #191 from l3l0/maintenace/add-new-php-spec

Update phpspec to newest version
Fixed Ftp::exists for hidden files
[Ftp] Added tests for files and dirs with spaces and unicode chars in name
[Ftp] Implements ListKeysAware interface and added support for parsing recursive rawlist - significant speed up