Vector 3.4

This update brings the following changes:

• Added a "Vector 2" like color scheme with stronger contrasts and without the redish hue of the default color scheme.
• Added support for .aifc files, which are AIFF files with a different file extension. Vector 3 will now open those files.
• Fixed a waveform rendering bug which would display "stripes" on high resolution displays.
• Improved compatibiltiy with macOS Mojave. There's no support for dark mode yet, but we're working on it.