Created SaveWriter
Deleted Save. Moved content of Save to Save.SaveWriter
Created save for players
Finished savePlayer method
Finished saveMap method
Created SaveReader class
Adaptation SaveWriter to read xml files
small correction of SaveWriter
Added some method in SaveReader
Finished serialization
Merge branch 'master' into Serialization

Conflicts:
	Plevian/Game.cs
Merge branch 'master' into Serialization

Conflicts:
	Plevian/Save.cs
Merged from master
Updated .gitignore - ignored .dll SFML
Merge branch 'Serialization'
Repair save for ComputerPlayer
Removed classes: MapFileReader and MapFileWriter
removed useless methods
small correction
small correction part 2