```ruby
# coding: utf-8
lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require './lib/redimap/version'

Gem::Specification.new do |spec|
  spec.name          = "redimap"
  spec.version       = Redimap::VERSION
  spec.authors       = ["tiredpixel"]
  spec.email         = ["tp@tiredpixel.com"]
  spec.description   = %q{TODO: Write a gem description}
  spec.summary       = %q{TODO: Write a gem summary}
  spec.homepage      = ""
  spec.license       = "MIT"
  
  spec.files         = `git ls-files`.split($/)
  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
  spec.require_paths = ["lib"]
  
  spec.add_dependency "redis", "~> 3.0.3"
  
  spec.add_development_dependency "bundler", "~> 1.3"
  spec.add_development_dependency "rake"
  spec.add_development_dependency "rspec"
end
```

Document Gemspec summary and description.
user
```ruby
# coding: utf-8
lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require './lib/redimap/version'

Gem::Specification.new do |spec|
  spec.name          = "redimap"
  spec.version       = Redimap::VERSION
  spec.authors       = ["tiredpixel"]
  spec.email         = ["tp@tiredpixel.com"]
  spec.description   = %q{Redimap provides a simple executable for polling mailboxes
    within an IMAP account. It keeps track of what it's seen using Redis. For new
    messages, the mailbox and uid are queued in Redis. The format used should be
    compatible with Resque.}
  spec.summary       = %q{Redimap polls IMAP account mailboxes and queues in Redis.}
  spec.homepage      = ""
  spec.license       = "MIT"
  
  spec.files         = `git ls-files`.split($/)
  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
  spec.require_paths = ["lib"]
  
  spec.add_dependency "redis", "~> 3.0.3"
  
  spec.add_development_dependency "bundler", "~> 1.3"
  spec.add_development_dependency "rake"
  spec.add_development_dependency "rspec"
end
```
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