[enqueue] Improve doc.

Move to trusty for travis except for php 5.3

return filter function String

Typo at log message

…m-allowed-failures

Remove Symfony 3.3 from allowed failures

Add chain loader implementation

Add chain loader documentation

…d-of-version-numbers

Use simplified Symfony version comparison operation and CS fixes

[Composer] Allow imagine-library version 0.7.0

- Allow construction of Locator without data roots for BC
- Mark FilesystemLocator::setOptions deprecated

…agick

…_construct()

…ndFilterLoader

Modify some PHP Annotations

Added support for centerright and centerleft position

…l output

[Filter] Add resolution filter loader

…nse-code

Allow to configure the HTTP response code for redirects

…mand-and-prettify

[Console] Add forced resolve to command and prittify and detail output

[Data Loader] Pass root paths to file system locator constructor (instead of loader)

…deprecation-message

[Tests] Fix filesystem loader deprecation message in tests

Release 1.9.0

Updated the docs for #974

- change --as-script/-s option name/shortcut to --machine-readable/-m to fix collision with core
  symfony 2.x console options (the long name was changed to provide additional clarity)
- change option shortcut and name for "as-script/s" to "machine-readable/m" to fix collision with
  symfony-provided "shell/s" option from the 2.x series
- align output formatting and internal implementation of remove command with the improvements already
  introduced to the resolve command in 1.9.0
- update help content for both remove and resolve commands to align with updated output formatting
  and better describe all available functionality of the commands
- extracted common functionality between resolve and remove commands to a new shared abstract class
  to remove code duplication
- updated CHANGELOG.md and UPGRADE.md to note BC break and detail additional changes
- renamed test filter sets to more realistic names and added some additional ones too
- completely rewrote remove command tests and refactored resolve command tests to enable shared
  fixtures and methods between the two
- in test app, moved default web loader to descrete, new "web" named loader and made the "default"
  loader a chain loader that uses "web" as welll as many of the other ones

[Console] Renamed resolve command's -s option to -m to avoid Symfony 2.x conflict, add --machine-readable option to remove command, and align output formatting of both commands

test with php 7.2

Updated documentation according to quality values

Update png-quant.rst

typo:
``/usr/bin/pnquant`` instead of ``/usr/bin/pngquant`` (missing `g`)

Update png-quant.rst

Fix nested level of bucket parameter

fix annotation

[Filter] Add "fixed-size" filter implementation