ENH: Starting to create a document structure.
ENH: Generate build in a sibling directory.

In this way we do not mix the source text with the build.
Now the output of the build appears in the directory

             ../M-Tutorial-Build/html
ENH: Improving formatting of each page.
ENH: Adding more functions and commands.
ENH: More commands and functions.
ENH: More functions and entries.
ENH: Added license file with CC BY.
ENH: Adding more entries.
ENH: Added more commands
ENH: More pages about variables.
ENH: Adding operators
ENH: Grouping major concepts.
Improving the title
Adding CC BY license to the pages footer
Add reference to UNIX GT.M Programmer's Guide
added the table listing the device types
added details on how to use the HOROLOG command
Merge branch 'mywork'
Added list of devices allowed by GT.M
Merge branch 'master' of git://github.com/OSEHR/M-Tutorial