Added check to avoid that the validate() function will play null files
simplified and improved check of null string in validate()
Merge pull request #14 from d4rkstar/validatefix

Added check to avoid that the validate() function will play null files
adding debug message when skipping validation sounds
stop executing when jumping to another node
adding slides link
handling fastagi hangup
Changed the log4php requirement source from pear to composer/packagist
Added LocalDialDescriptor class
Added unit test for LocalDialDescriptor
Merge pull request #20 from staelche/local-dial-descriptor

Added LocalDialDescriptor class
adding link to sdl article
- Removed composer.lock
- Added composer.lock to .gitignore
- Changed required log4php version to version 2.1.0
Merge pull request #19 from staelche/change-php4log-src

Changed the log4php requirement source from pear to composer/packagist
Added use statements to PAGI IClient to aid IDEs.

Signed-off-by: Jacob Kiers <jacob@alphacomm.nl>
Merge upstream changes into master.

Signed-off-by: Jacob Kiers <jacob@alphacomm.nl>

Conflicts:
	composer.json