Preference's Alert service behaviour changed

The interval of the alert check service is now available only if the
service is activated
.properties updated

.properties is now read from project.properties and no more on
default.properties
Using match_parent instead of "fill_parent"

"fill_parent" has been depreceated since Api level 8, better to use
"match_parent" instead
Splashscreen is now in fullscreen mode
remove useless method
Utility Class to make logs
New Behaviour for SplashActivity

Asynctask has been removed and replaced by handler system. Also
Splashscreen is now removed from the screen after OverviewActivity been
launched
gitignore updated
small improvements

if the service is destroyed, there is now no more check scheduled.