ALE v1.2.1

Bugs Fixed

• Exceptions will no longer be thrown when the checks for conflicting plugins are run before the rest of the ALE plugin code.
• Various linters no longer set errors at column 1, when there is no column set.
• Linting will no longer be performed from inside of a command window.
• Errors will now be returned for zsh scripts for the shell linter.
• The vint linter wasn't setting the --no-color option for versions 0.3.7 and above, due to a typo. This has been fixed.
• The php linter was parsing some errors twice. This has been fixed.
• Highlights will now be cleared when buffers are unloaded, so matches will not appear in the wrong files.