Release 0.14.0 (#300)

* Introduce script to automate release

* Rakefile levelup

* Version 0.14.0

* Fix newline at end of podspec.json

* Ensure we start and end on master branch

And that we pull latest master before tagging

* CRLF at EOF

* Remove [:version] param from `release:finish` task

It can be guessed from the current podspec version

* Fix create_release task

* Ensure we run rake via bundle exec

Co-authored-by: David Jennes <djbe@users.noreply.github.com>

Co-authored-by: David Jennes <djbe@users.noreply.github.com>

rakelib/changelog.rake

@@ -0,0 +1,34 @@
+NEW_CHANGELOG_SECTION = "## Master\n" + ['Breaking', 'Enhancements', 'Deprecations', 'Bug Fixes', 'Internal Changes'].map do |s|
+  <<~MARKDOWN
+
+    ### #{s}
+    
+    _None_
+  MARKDOWN
+end.join
+
+def changelog_first_section
+  content = []
+  section_count = 0
+  File.foreach(CHANGELOG_FILE) do |line|
+    section_count += 1 if line.start_with?('## ')
+    break if section_count > 1
+    content.append(line) if section_count == 1
+  end
+  content[1..].join
+end
+
+namespace :changelog do
+  # rake changelog:reset
+  desc "Add a new empty section at the top of the changelog and git push it"
+  task :reset do
+    header "Reset CHANGELOG"
+    content = File.read(CHANGELOG_FILE)
+    new_content = NEW_CHANGELOG_SECTION + "\n" + content
+    File.write(CHANGELOG_FILE, new_content)
+
+    sh("git", "add", CHANGELOG_FILE)
+    sh("git", "commit", "-m", "Reset CHANGELOG")
+    sh("git", "push")
+  end
+end