Bukkit

Added new command /isp setline <index> <value>
- perm: isp.setine
- perm: isp.setine.override
- To add to a line rather than replace use /isp setline <index> {line}<value> - where <value> is the text you want to append
- This command is useful when wanting to insert unicode to a sign
Added "description" option to custom placeholders - for /isp help <placeholder> and ISP.getDescription(...)
Added "elevation" option to custom placeholders - which decides how to evaluate a placeholder
Custom placeholders are now recognized as placeholders by the API
- Now you can use /isp <disable/enable> <custom placeholder name>
Fixed return not working properly for console
Fixed \n not splitting the lines on a sign when using "return" for a custom placeholder
Fixed "/isp reload" not reloading custom placeholders properly
Fixed the event system not working properly (again!)
Some features of the plugin can now work if you do not have ProtocolLib installed (INSTALL IT!)
Updated the included files to reflect the aboce changes