Files in lib/mspec/commands are not executables

There are wrappers for the commands in bin. Remove the executable file
permission, the shebang and the load path modifications.

Author: herwinw

lib/mspec/commands/mkspec.rb

@@ -1,5 +1,3 @@
-#!/usr/bin/env ruby
-
 require 'rbconfig'
 require 'mspec/version'
 require 'mspec/utils/options'

lib/mspec/commands/mspec-ci.rb

@@ -1,7 +1,3 @@
-#!/usr/bin/env ruby
-
-$:.unshift File.expand_path(File.dirname(__FILE__) + '/../lib')
-
 require 'mspec/version'
 require 'mspec/utils/options'
 require 'mspec/utils/script'

lib/mspec/commands/mspec-run.rb

@@ -1,7 +1,3 @@
-#!/usr/bin/env ruby
-
-$:.unshift File.expand_path(File.dirname(__FILE__) + '/../lib')
-
 require 'mspec/version'
 require 'mspec/utils/options'
 require 'mspec/utils/script'

lib/mspec/commands/mspec-tag.rb

@@ -1,5 +1,3 @@
-#!/usr/bin/env ruby
-
 require 'mspec/version'
 require 'mspec/utils/options'
 require 'mspec/utils/script'

lib/mspec/commands/mspec.rb

@@ -1,5 +1,3 @@
-#!/usr/bin/env ruby
-
 require 'mspec/version'
 require 'mspec/utils/options'
 require 'mspec/utils/script'