Fix the heart meter not updated until the first save/reload (fix #67).
Use Solarus 1.1.1 with ZSDX 1.7.1.
Automatically fix savegames broken by Billy's cave bug (#66).
Merge branch 'v1.7'

Conflicts:
	ChangeLog
Fix hearts not visible in the savegame menu (fix #68).
Merge branch 'v1.7'
Merge branch 'master' into texture