[LAA] Guitarix2 release version 0.42.0

I'm pleased to announce the release of guitarix2-0.42.0 A virtual guitar amplifier for Linux running with jack (Jack Audio Connection Kit) released under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. ZamAudio <https://github.com/zamaudio> meets Guitarix https://github.com/zamaudio For this release Damien Zammit from ZamAudio has reworked our tube emulation. This improved beside the overall sound, the dynamic responses of the different tube simulations. Be aware please, that this may break your existing presets, but, we believe that the improvement in sound is it worse to force you to readjust your presets to match the new tube sims. Further news are: Reworked French translation by Olivier Humbert Add DC-Blocker on the Input Add Output Limiter Add Volume controls for the Power Amp plugin Fix version checks for needed packages Fix several small Bugs and hopefully don't introduce to much new ones Last release: https://github.com/brummer10/guitarix/releases/tag/V0.42.0 Project Page on github: https://github.com/brummer10/guitarix Project Page on SourceForge: https://sourceforge.net/projects/guitarix/