Bump version to use Nim 0.18.0 (stable) instead of 0.18.1 (not yet released).

cliutils.nim

@@ -1,5 +1,7 @@
-import docopt, json, osproc, posix, nre, streams, strutils, strtabs
+import docopt, json, osproc, posix, nre, streams, strtabs, unicode
 import os except sleep
+import strutils except toUpper, toLower
+
 
 type
   CombinedConfig* = object
@@ -71,7 +73,7 @@ proc exec*(command: string, workingDir: string = "",
            args: openArray[string] = [], env: StringTableRef = nil,
            options: set[ProcessOption] = {poUsePath},
            msgCB: HandleProcMsgCB = nil): int
-    {.tags: [ExecIOEffect, ReadIOEffect], gcsafe.} =
+    {.tags: [ExecIOEffect, ReadIOEffect, RootEffect], gcsafe.} =
 
   var p = startProcess(command, workingDir, args, env, options)
   result = waitFor(p, msgCB, command)
@@ -108,7 +110,7 @@ proc onStop(sig: cint) {.noconv.} =
 
   quit(QuitSuccess)
 
-proc daemonize*(pidfile, si, so, se: string, daemonMain: proc(): void): int =
+proc daemonize*(pidfile, si, so, se: string, daemonMain: proc(): void): Pid =
 
   if fileExists(pidfile):
     raise newException(IOError, "pidfile " & pidfile & " already exists, daemon already running?")

cliutils.nimble

@@ -1,11 +1,11 @@
 # Package
 
-version       = "0.3.0"
+version       = "0.3.4"
 author        = "Jonathan Bernard"
 description   = "Helper functions for writing command line interfaces."
 license       = "MIT"
 
 # Dependencies
 
-requires @["nim >= 0.15.3", "docopt"]
+requires @["nim >= 0.18.0", "docopt"]