Bump copyright message to 2013
Rename OLLLibrary to OLLib
Set up stylesheets/fontsets

Set up a distinct directory for fontset stylesheets.
Move fontset_Minion-Pro there
Set up subdirectories of stylesheets

style sheets should go into distinct subdirectories, because variants of style sheets can sum up to several files each.

Create subdir a4-lied and move existing files there
Remove some obsolete .forceDir files
Move .forceDir files into renamed OLLib folder
Sort out OLLexamples and OLLtemplates folders

Examples and templates now are in separate toplevel directories
Add README files for each folder
Move openLilyLib_Manual.tex to OLLib

In the context of redefining the purpose of openLilyLib (from the concrete LIlyPond library to a wider range of purposes including tutorials and other LilyPond resources) I restructure the documentation: OLLib.tex will become the documentation of the core library.
Estabilsh documentation/tutorials/plans.md
Add first draft of LaTeX classes and styles

The structure and nesting of classes, styles and subfiles has to be discusses.
The current commit introduces the files as a base for this discussion
openLilyLib.tex (main document): First stub

openLilyLib.tex will be the main document for a compiled volume of all materials.
As the structure isn't finally decided yet (see message to commit ...) this document is more of a stub for now