Local addons ok

[dimitre]

I'm now working on this issue #580
I've noticed it is mostly working after @roymacdonald PR,
but it enforces using ./ in the start of the path, like

./addons/ofxMidi
etc

this PR allows addons to be added like

addons/ofxMidi
addons/ofxTetris

and also removes the function cleanName.
This function actually parses a commented out line like #ofxSyphon, removes the comment and add the addon back which contradicts the person original intention.

[roymacdonald]

and also removes the function cleanName.
This function actually parses a commented out line like #ofxSyphon, removes the comment and add the addon back which contradicts the person original intention.

The purpose of this is to be able to have extra information of an addon in the form of a comment and not loosing that. For example, there is a very nice "Package Manager" made by @thomasgeissl which relies on this feature, where it encodes as a comment the version or commit of an addon, so you can then have that. I am not sure if I implemented it all but the idea is that you dont remove the comments from the addons.mk file