Implemented parameter passing into script, added a minimal getop-parser, added an example script which takes parameters

client/scripts/parameters.lua

@@ -0,0 +1,45 @@
+
+-- The getopt-functionality is loaded from pm3/getopt.lua
+-- Have a look there for further details
+getopt = require('getopt')
+
+usage = "script run parameters.lua -a 1 -blala -c -de"
+author = "Martin Holst Swende"
+desc =[[
+This is an example script to demonstrate handle parameters in scripts. 
+For more info, check the comments in the code
+]]
+
+local function main(args)
+
+	print(desc)
+	print("These parameters were passed")
+	--[[
+	When passing parameters, 
+	x:		means that a value should follow x
+	y		means that 'y' is a flag, either on or off
+	So, the string a:b:def means that we support up to 
+	5 parameters; two with values and three flags. The following 
+	should be valid: 
+
+	script run parameters.lua -a 1 -blala -c -de
+
+	Notice two things:
+	1. 'blala' works just like 'b lala', both set 'b' to 'lala'
+	2. Flags can be put together, '-de' is the same as '-d -e'
+	3. The format -b=lala is *not* supported
+	4. The format b lala (without -) is *not* supported
+	--]]
+
+	for o, a in getopt.getopt(args, 'a:b:ced') do
+		print(o, a)
+	end
+end
+
+
+--[[
+In the future, we may implement so that scripts are invoked directly 
+into a 'main' function, instead of being executed blindly. For future
+compatibility, I have done so, but I invoke my main from here.  
+--]]
+main(args)