add placeholder flag to frame

With the .IsPlaceholder property, a Frame will not draw a label.

v4.0.0: reintroduce MiniConsole:DEcho changes

Major bump: an API change for MiniConsoles.

v3.3.5: Merge pull request #4 from vadi2/master

Create config.lua

prevent recursive imports

#2: remove vyzor.mpackage

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This resolves an issue in which the package could be recursively
imported into Mudlet when the repo is downloaded as a .zip.

Consequently, the preferred method of distribution now will be to
download the repo as a .zip and rename it to .mpackage.

v3.03.02

This release removes the .mpackage from the repo to prevent recursive import when the repo is downloaded as a .zip.