Only convert the first page by default.

When converting between formats convert only the first page, if you
would like to convert all the pages use 'nil' or 'false' as your page.
refactored addition of 'quiet'-option and added tests
Updated travis ci config
Merge pull request #97 from fschwahn/refactor_identify_errors

refactored addition of 'quiet'-option and added tests
Update mogrify commands, rename command to tool in the command builder for clarity
Merge pull request #102 from bensie/master

Update available mogrify commands
Remove method_missing in favor of define_method
Merge pull request #105 from bensie/master

Remove method_missing in favor of define_method
Merge pull request #75 from loe/5ac5d9f2a70f46850014822bd0f67a4411615882

Only convert one page unless explicitly asked to convert them all
GitHub flavored markdown readme
Readme typos
Update output composite file
Use digest/md5 to test the integrity of files
minimagick in readme
Change the link too dummy
Remove Gemfile.lock, update Travis, closes #106
Merge branch 'master' of github.com:minimagick/minimagick
Fixed the errornous test, because ImageMagick assumes everything to be sRGB
Merge pull request #114 from kaspergrubbe/master

Made the test-suite green by fixing the colorspace
Added RMagick migration notes, composition examples etc.