docs : add info on installing libzmq4-dev package and cython 0.19
Merge pull request #20 from luminize/docs-libzmq4-cython

docs : add info on installing libzmq4-dev package and cython 0.19
fix typo (sudp->sudo), remove libzmq4-dev
explain kernel install, matching package install

this needs polishing for the raspberry - Gemi?
next iteration
fix 686 -> i686
Merge pull request #21 from mhaberler/master

explain kernel install, matching package install
fixes #22

Change name of Raspberry Pi Xenomai kernel package and add Note to
alert reader to possible future changes in kernel-naming conventions.
Merge pull request #24 from RunningLight/RPiInstruction

fixes #22
initial commit of instructions for building from source, addresses #22

This page needs additional material detailing options available
slightly tweaked instructions in response to Zultron
fixed file name, changed next_section pointer, edited _data/doc.yml

These changes place "Building from Source" in "Development" submenu
take advantage of the command option 'su -c'
Merge pull request #26 from RunningLight/BuildInstructions

initial commit of instructions for building from source, addresses #22
fix copy and paste problem in beaglebone command
Merge pull request #27 from strahlex/copy_and_paste_fix

fix copy and paste problem in beaglebone command
adding rip-environment for .bashrc
Merge pull request #28 from strahlex/rip-environment

adding rip-environment for .bashrc
add runtime dependencies: addresses items in machinekit/#355, fixes machinekit/#345
Add package dependency to docs

Build from sources now requires python-pyftpdlib
which is in repo, but not mentioned in docs

Signed-off-by: Mick Grant <arceye@mgware.co.uk>