Remove obsolete dev bloat

Gemfile

@@ -6,10 +6,6 @@ gem 'ruby-prof'
 gem 'pry'
 gem 'pry-byebug'
 gem 'yard'
-gem 'pronto'
-gem 'pronto-rubocop'
-gem 'pronto-fasterer'
-gem 'pronto-poper'
 gem 'simplecov'
 gem 'solargraph'
 gem 'coveralls', :require => false

README.md

@@ -254,10 +254,12 @@ Development
 
 Run `bundle install` to install development dependencies.
 
-Run `punch --test` to run the test suite.
+Run `rake test` to run the test suite.
 
-Run `punch --review` to list code style violations of your changes against the
-current master.
+Please setup and configure [Rubocop](https://github.com/rubocop-hq/rubocop) to
+respect the rules in `.rubocop.yml` in this repository's root and lint your
+changes.
 
-Punch tries to remain free of third party runtime dependencies so that it can be
-run on any system with just Ruby installed.
+Punch tries to remain free of third party runtime dependencies so that it can
+run on any system with just Ruby installed. The gems listed in `Gemfile` are
+loaded for development purposes only.

help.txt

@@ -260,11 +260,5 @@ $ punch --hack
 $ punch --profile
     Profile and print results.
 
-$ punch --review
-    Display review of your code and commit messages.
-
 $ punch --test
     Run tests.
-
-$ punch --trello
-    Open Trello board.

lib/punch_clock.rb

@@ -226,21 +226,11 @@ def punch
       exit
     end
 
-    switch "--review" do
-      system "cd #{punch_folder} && pronto run"
-      exit
-    end
-
     switch "--travis" do
       OS.open "https://travis-ci.org/rathrio/punch"
       exit
     end
 
-    switch "--trello" do
-      OS.open "https://trello.com/b/xfN8alsq/punch"
-      exit
-    end
-
     switch "--github" do
       OS.open "https://github.com/rathrio/punch"
       exit