added a better error handling for when the exe is missing a file version
added a bugfix for when a site is updated, also the logging is better
Merge pull request #131 from karaaie/feature/service-install-version-fix

Added a better error handling for when the exe is missing a file version
Merge pull request #132 from karaaie/feature/iis-site-content-dir-fix

added a bugfix for when a site is updated, also the logging is better
application pool will now restart before it it being updated