fix bl.schedule errors

readme.md

@@ -1,5 +1,8 @@
 
 # BlockLua
+
+Lua scripting for Blockland
+
 ## How to Install
 - Install RedBlocklandLoader  
 - Copy `lua5.1.dll` into your Blockland install folder, next to `Blockland.exe`  
@@ -64,9 +67,11 @@ Relative paths (`./`) are allowed. `..` is not allowed.
 `file:write(string)` - Write an opened file (must be opened in 'w' (write), 'a' (append), 'wb' or 'ab' mode)  
 `file:close()` - Close an opened file  
 Reading files from ZIPs is supported, with caveats. Null characters are not allowed, and \r\n becomes \n. Generally, text formats work, and binary formats don't.  
+When reading from outside ZIPs, binary files are fully supported.
 
 ### Modules and Dependencies
 `dofile('Add-Ons/Path/file.lua')` - Execute a Lua file. Relative paths (`./file.lua`) are allowed. `..` is not allowed.  
+  
 `require('modulePath.moduleName')` - Load a Lua file or or external library.  
 Require replaces `.` with `/` in the path, and then searches for files in the following order:  
 - `./modulePath/moduleName.lua`  
@@ -76,6 +81,7 @@ Require replaces `.` with `/` in the path, and then searches for files in the fo
 - `modules/lualib/modulePath/moduleName.lua`  
 - `modules/lualib/modulePath/moduleName/init.lua`  
 - `modules/lualib/modulePath/moduleName.dll`  
+  
 Like in standard Lua, modules loaded using `require` are only executed the first time `require` is called with that path. Subsequent calls simply return the result from the initial execution. To allow hot reloading, use `dofile`.  
 
 ## Type Conversion

src/util/libbl.lua

@@ -538,7 +538,7 @@ function _bllua_schedule_callback(id)
 	id = tonumber(id)
 	local sch = bl._scheduleTable[id]
 	if not sch then error('_ts_schedule_callback: no schedule with id '..id) end
-	bl._scheduleTable[sched_id] = nil
+	bl._scheduleTable[id] = nil
 	sch.callback(unpack(sch.args))
 end