added the ability to reload libraries to the loadfile module

module/loadfile.lua

@@ -13,8 +13,8 @@ function os.spawnfile(p,n,...) -- spawns a new process from file *p* with name *
 end
 _G.package = {}
 package.loaded = {computer=computer,component=component,fs=fs,buffer=buffer}
-function require(f) -- searches for a library with name *f* and returns what the library returns, if possible
- if not package.loaded[f] then
+function require(f,force) -- searches for a library with name *f* and returns what the library returns, if possible. if *force* is set, loads the library even if it is cached
+ if not package.loaded[f] or force then
   local lib = os.getenv("LIB") or "/boot/lib"
   for d in lib:gmatch("[^\n]+") do
    if fs.exists(d.."/"..f) then
@@ -29,3 +29,6 @@ function require(f) -- searches for a library with name *f* and returns what the
  end
  error("library not found: "..f)
 end
+function reload(f)
+ return require(f,true)
+end