[20190525]
 * Fix makefile launchpad_release
 * Add zoom app icons
 * Fix payday2 app icon shadows for KDE
 * Update supertuxkart app icon
 * Update tuxguitar app icon
 * Add UberWriter app icon
 * Add ephemeral app icon
 * Add com.github.cassidyjames.palette app icon symlink
 * Add brave-browser-dev and brave-browser-nightly app icons
 * Add github-desktop app icons
 * Add colorpicker.svg app icon symlink
 * Add appimagekit-colorpicker.svg app icon symlink
 * Add makefile CHANGELOG autogeneration function
 * Update ksnakeduel app icon
 * Update opera-developer app icon
 * Update nvim app icon
 * Update marble app icon
 * Update maxthon app icon
 * Update supermeatboy app icon
 * Update notepadqq app icon
 * Update metro redux app icon
 * Update mono app icon
 * Change mail icons colors
 * Add launchpad automated release
 * Update FUNDING.yml
 * Create FUNDING.yml
 * Update manual installation explanation
 * Update flat-remix.spec version 20190503
 * 20190503

[20190503]
 * Add some color to mail icon @charlesg99 :wink:
 * Fix mimetype icon shadows for KDE
 * Add new mimetypes symlinks
 * Update flat-remix.spec version 20190427