Fix Shell and executables

Author: hasumikin

mrbgems/picoruby-shell/mrbgem.rake

@@ -13,14 +13,13 @@ MRuby::Gem::Specification.new('picoruby-shell') do |spec|
   spec.add_dependency 'picoruby-sandbox'
   spec.add_dependency 'picoruby-env'
   spec.add_dependency 'picoruby-crc'
+  spec.add_dependency 'picoruby-machine'
   if build.posix?
     if build.vm_mrubyc?
       spec.add_dependency('picoruby-dir')
     elsif build.vm_mruby?
       spec.add_dependency('mruby-dir')
     end
-  else
-    spec.add_dependency 'picoruby-machine' # for shell executables
   end
 
   exe_dir = "#{build_dir}/shell_executables"

mrbgems/picoruby-shell/mrblib/shell.rb

@@ -2,6 +2,8 @@
 require "metaprog"
 require "picorubyvm"
 require "sandbox"
+require "crc"
+require "machine"
 begin
   require "filesystem-fat"
   require "vfs"

mrbgems/picoruby-shell/shell_executables/date.mrb

@@ -139,7 +139,6 @@ def packet_callback(event_packet)
 end
 
 puts "\nLaunching BLE peripheral to configure WiFi connection."
-puts "Open https://picoruby.github.io/wifi in a web browser\n"
 
 # Start BLE Peripheral
 require 'rng'