Various fixes to acore dashboard

+ simple restarter now prevents infinite crash loops
+ client data downloader now uses github releases and fixed downloading path
+ module updating now take care about compatibility version info
+ disabled CONFDIR variable in bash conf file, using BINPATH by default instead

conf/config.sh.dist

@@ -1,4 +1,5 @@
 # absolute root path of your azerothcore repository
+# It should not be modified if you don't really know what you're doing
 SRCPATH="$AC_PATH_ROOT"
 
 # absolute path where build files must be stored
@@ -8,7 +9,8 @@ BUILDPATH="$AC_PATH_ROOT/var/build/obj"
 BINPATH="$AC_PATH_ROOT/env/dist"
 
 # absolute path where config. files must be stored
-CONFDIR="$AC_PATH_ROOT/env/dist/etc/"
+# default: the system will use binpath by default
+# CONFDIR="$AC_PATH_ROOT/env/dist/etc/"
 
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