lang: parser, funcs: Change the logical operators to OR, AND, NOT

This makes it easier to read for some, and easier to parse for us. This
also frees up more characters to use elsewhere.

examples/lang/hysteresis1.mcl

@@ -14,7 +14,7 @@ $threshold = 1.5	# change me if you like
 $h1 = $theload > $threshold
 $h2 = $theload{1} > $threshold
 $h3 = $theload{2} > $threshold
-$unload = $h1 || $h2 || $h3
+$unload = $h1 or $h2 or $h3
 
 virt "mgmt1" {
 	uri => "qemu:///session",

examples/lang/map-iterator1.mcl

@@ -9,7 +9,7 @@ $mod0 = math.mod($now, 8) == 0
 $mod1 = math.mod($now, 8) == 1
 $mod2 = math.mod($now, 8) == 2
 $mod3 = math.mod($now, 8) == 3
-$mod = $mod0 || $mod1 || $mod2 || $mod3
+$mod = $mod0 or $mod1 or $mod2 or $mod3
 
 $fn = func($x) { # notable because concrete type is fn(t1) t2, where t1 != t2
 	len($x)

examples/lang/map-iterator2.mcl

@@ -9,13 +9,13 @@ $mod0 = math.mod($now, 8) == 0
 $mod1 = math.mod($now, 8) == 1
 $mod2 = math.mod($now, 8) == 2
 $mod3 = math.mod($now, 8) == 3
-$moda = $mod0 || $mod1 || $mod2 || $mod3
+$moda = $mod0 or $mod1 or $mod2 or $mod3
 
 $mod4 = math.mod($now, 8) == 4
 $mod5 = math.mod($now, 8) == 5
 $mod6 = math.mod($now, 8) == 6
 $mod7 = math.mod($now, 8) == 7
-$modb = $mod4 || $mod5 || $mod6 || $mod7
+$modb = $mod4 or $mod5 or $mod6 or $mod7
 
 $fn = if $moda {
 	func($x) { # notable because concrete type is fn(t1) t2, where t1 != t2

examples/lang/readonlyfriday.mcl

@@ -9,7 +9,7 @@ $s1 = template("Hello! It is now: {{ datetime_print . }}\n", $now)
 $s2 = if $is_friday {
 	"It's friday!!! (don't break anything, read-only)"
 } else {
-	if $day == "saturday" || $day == "sunday" {
+	if $day == "saturday" or $day == "sunday" {
 		"It's the weekend!"
 	} else {
 		fmt.printf("Unfortunately, it is %s. Go to work!", $day)

examples/lang/reverse1.mcl

@@ -8,7 +8,7 @@ $mod0 = math.mod($now, 8) == 0
 $mod1 = math.mod($now, 8) == 1
 $mod2 = math.mod($now, 8) == 2
 $mod3 = math.mod($now, 8) == 3
-$mod = $mod0 || $mod1 || $mod2 || $mod3
+$mod = $mod0 or $mod1 or $mod2 or $mod3
 
 file "/tmp/mgmt/" {
 	state => $const.res.file.state.exists,

examples/lang/reverse2.mcl

@@ -8,7 +8,7 @@ $mod0 = math.mod($now, 8) == 0
 $mod1 = math.mod($now, 8) == 1
 $mod2 = math.mod($now, 8) == 2
 $mod3 = math.mod($now, 8) == 3
-$mod = $mod0 || $mod1 || $mod2 || $mod3
+$mod = $mod0 or $mod1 or $mod2 or $mod3
 
 file "/tmp/mgmt/" {
 	state => $const.res.file.state.exists,

examples/lang/reverse3.mcl

@@ -8,7 +8,7 @@ $mod0 = math.mod($now, 8) == 0
 $mod1 = math.mod($now, 8) == 1
 $mod2 = math.mod($now, 8) == 2
 $mod3 = math.mod($now, 8) == 3
-$mod = $mod0 || $mod1 || $mod2 || $mod3
+$mod = $mod0 or $mod1 or $mod2 or $mod3
 
 file "/tmp/mgmt/" {
 	state => $const.res.file.state.exists,

examples/lang/states0.mcl

@@ -4,7 +4,7 @@ $ns = "estate"
 $exchanged = world.kvlookup($ns)
 $state = maplookup($exchanged, $hostname, "default")
 
-if $state == "one" || $state == "default" {
+if $state == "one" or $state == "default" {
 
 	file "/tmp/mgmt/state" {
 		state => $const.res.file.state.exists,