Server code and files reorganization

config/database.properties

@@ -1,4 +1,30 @@
+# ---------------------------------------------------------------------------
+# JDBCDatabaseService configuration
+# ---------------------------------------------------------------------------
+# Parameters in this file are used by JDBCDatabaseService.
+# If you are not sure on the usage of any parameter, read the "Configuration"
+# section in wiki article about "JDBCDatabaseService".
+# 			https://github.com/l2jserver2/
+# ---------------------------------------------------------------------------
+# NOTE: this is the development configuration file. Always remember to add
+# new parameters to "dist/config" files too!
+# ---------------------------------------------------------------------------
+
+# This defines the connection URL used by JDBC to connect to the database.
+# Default: jdbc:mysql://localhost/l2jserver2
 jdbc.url = jdbc:mysql://localhost/l2jserver2
+
+# The driver used to connect to the database. Please note that the driver
+# library must be available in the JVM classpath.
+# Default: com.mysql.jdbc.Driver in MySQL binary distribution or
+# org.h2.Driver in H2 binary distribution
 jdbc.driver = com.mysql.jdbc.Driver
+
+# The username used to login into the database.
+# NOTE: Try not use "root" in production servers!
+# Default: l2j
 jdbc.username = l2j
+
+# The password used to login into the database.
+# Default: changeme
 jdbc.password = changeme