Aegisub

This should list all changes in Aegisub between version 2.1.7 and 2.1.8. A few minor things may have been missed, but it shouldn't be anything important.
Overview

* Official Mac, Linux and Unix versions. The Mac version is still alpha quality, though, and we don't have specific binary packages for many Linux distributions.
* Fixed the "Could not lock buffer for filling" problem when playing audio on Windows 7, and rarely on Vista too.
* The video display is now much more compatible with limited OpenGL drivers and should work on all systems, notably Windows Vista and 7 with standard drivers.
* Clicking "Play" on the video now only plays audio if you have explicitly opened audio from the Audio menu. If you want to hear any sound you now must load audio via the Audio menu.
* The Portable version is now (almost) full-featured, only missing is ASSDraw3, because making a portable version of that is non-trivial. We also have an upgrade installer saving you a lot of download, if you already have 2.1.7 installed.

Details

* Fixed a bug with the Kanji Timer feature, where clicking some buttons before setting everything up could cause a crash. (#977)
* The Transform Framerate export filter didn't work correctly at all. (#1014)
* All common occurrences of "Could not lock buffer for filling" on Windows should be fixed. (#1028)
* Fixed a possible crash with an uncommon sequence of actions in the colour picker. (#1025)
* The Detached Video is moved into view on opening now, if it was partially or entirely outside the desktop area. (#1040)
* The version checking function was completely rewritten to work on all platforms and be more flexible. (#1071, #365, #970, #1080)
* The "play audio from video" function was removed, the Play buttons for video now only play audio if audio has been loaded. This is done because we can't support the playback reliably otherwise. (#1090)
* Handle malformed SSA/ASS files missing the [Script Info] line. (#440)
* Several strings that...