changed navigable map to map
Merge branch 'master' of
https://github.com/snudler6/softwareDesignHW2.git

Conflicts:
	src/main/java/ac/il/technion/twc/TweetsDict.java
added kryo to save the days array
Merge branch 'master' of
https://github.com/snudler6/softwareDesignHW2.git

Conflicts:
	src/main/java/ac/il/technion/twc/TweetsDict.java