Adds O'Reilly Early Edition output for free download

- Adds epub, mobi, pdf built by O'Reilly toolchain
- Keeps our HTML output for reading and linking
- Links to O'Reilly site

Change-Id: I2a720da4fc7c991c86b79977154f12190ad3f2f2
reset content to resolve upstream depency issue

reset to zero to clear the content for inclusion of the aptira
content replacing the basic install guide content which was
depricated.

Change-Id: Ic464b7124a40984bab685352657a8bb51bd0b5dd
Implements: bp/training-manuals
Merge "Adds O'Reilly Early Edition output for free download"