To do
-------

* Sample rate callback
* ladspa.m4
* Custom float widget
* Reload
* Display of plugins' execution time
* Save window size/position
* Gain controls for aux in/out
* use plugin graphs instead of chains
* use lrdf data over in-plugin data


 In 1.4.0
----------
* MIDI control


 In 1.3.0
----------
* Logarithmic controls
* Wet/dry controls for each slot
* Add auxilliary input/output port handling (sidechains, etc)


 In 1.2.0
----------
* Arbitrary channel numbers
* Only display one set of widgets for locked controls
* Port connecting


 In 1.1
--------
* LRDF support
* Don't keep plugin files open
* Flashy splash screen
* Load/Save configuration