Fix Composer ambiguous class resolution warnings

#192

• Fix Composer ambiguous class resolution warnings by removing duplicate validator-generated.php
• Updated Travis CI configuration to use the updated trusty distro, run tests on PHP 7.1, and allow failures on HHVM.

Improved functionality with videos

#176

• FB video validation is now more relaxed

#177

• A twitter video class is added to twitter videos for better CSS modifications. The class is twitter-video

#178

• AMP pixel accepts http for transforming into https.

#182

• Youtube video hashes are now converted to start positions with data-param-start

#179

• Tall Pinterest pins are now supported

#165

• amp-accordion is now properly mapped in the components

Thanks to @obeyer and @renzit for improving the library :)

YouTube improvements, image height improvements, object code transforms

#164

• Bugfix: Improved the way we fetch youtube codes and return them.
• Bugfix: Add image height to responsive images to get valid AMP
• Bugfix: Allow PHP nightly to fail during build process. This is important to know when builds pass on supported platforms.
• Feature: Added autodetection of amp-anim if you enable it in options.

#170

• Bugfix: Transforming embed code object tags
  • Transform youtube, vimeo, embed code object tags to amp-youtube, amp-vimeo. Tranform other embed code object tags to a#href.

More fixes

There are more fixes and improvements that have been over time.
Because of the amount of features between releases, we're tagging this release as 1.1.0

Core library should not depend on symfony/console

#134 Core library should not depend on symfony/console

Improve support for twitter & facebook embeds

#136 Update facebook video embed regular expression to match all users videos
#137 amp-twitter: support urls with 'statuses'

1.0.5

#132 Youtube iframe without data-param-* causes warning

1.0.4

#128 Use standard class selector syntax for instagram blockquote

1.0.3

• #127 Use standard selector syntax for classes
• #125 Handle protocol relative urls correctly in iframe conversions
• Fix wrong CSS_SYNTAX error code

1.0.2

• Completed #111 Improve HTML correction abilities of validator (merged PRs #120 , #119, #114 )
• #79 Modifications to support line numbers for CSS validation errors
• #46 Add workaround for pinterest pins getting chopped off
• #115 Add the ability to skip tests that require the internet
• #118 Add some documentation for src/Validate directory
• #122 Fix case sensitivity issue in SVG
• Other documentation improvements

1.0.1

• #117 Issue deprecation tag warnings
• #115 Add ability to skip tests that require an internet connection