Image Line updates Sytrus to v2.2

Image Line has updated Sytrus to v2.2.

Changes:

• A new 'stairs' envelope line mode (can be handy for bit reduction in the waveshaper section).
• Now up to 256 harmonics in the oscillator's harmonics editor (and some new tools on them).
• A new tool to smooth up abrupt changes in envelopes.
• Speed improvements.
• Miscellaneous bug-fixes.