* Lots of debugging stuff lying around.

* A significant rewrite of the prior iemgui numbox behavior to capitalize on the exclusive grab opportunity.

* migrating to Linux for debugging

Feature private abstractions test - Mac fixes

See merge request guillembartrina/purr-data!5

Merge branch 'feature_privateabstractions_test-cosmetic-fixes' into 'feature_privateabstractions_test'

Feature private abstractions test - cosmetic fixes

See merge request guillembartrina/purr-data!4

Minor touches to the private abstractions test branch.

See merge request guillembartrina/purr-data!3

* Label font is not any more erroneously affected by the resizing of the numbox

* The width is now more conservative and accurate

* When a new number was entered that exceeds the numbox width and was replaced by a + or a - and after it was refocused again with a shift pressed (thus entering the append mode), the + did not revert back to the entered number. Now it does (even though you only see the last n digits that fit the numbox--LATER: we may want to add a < or > at the beginning, letting the user know that there are more digits to the left. This however, with the current setup may not be as trivial as it seems, so we will keep it as-is for the time being until users report problems/dislike with the current mode of operation which is still way better than it used to be).

Following a discussion with Ico, make sure to apply the fix to actual
canvas class objects only, so that we do not exit temporary run mode
unless the user really clicked on a subpatch (or abstraction) object.

Fixes a residual regression with MR !528 (Findbox fixes) reported by
Joseph Gastelais, which causes temporary run mode to stick when opening
a subpatch using Alt-click (i.e., mouse click on the subpatch in
temporary run mode). Resolved using Jonathan's fake keyup trick.

If the declare object detects an unrecognized argument which isn't an
option symbol, it will print a weird-looking message complaining about
an empty flag. This commit makes it print a proper warning about an
unrecognized float argument instead.

*Addresses issue #449

'aggraef/purr-data-abstractionsaving-final-fix'