Initial checkin
lab 8 complete
Lab 15
typos
typos
changed
Minor fixes

Fix some typos and capitalisation.

s/cpu/CPU/
s/io/IO
s/https/HTTPS/
s/http/HTTP/
s/ssh/SSH/
s/VMWare/VMware/
s/etc/etc./
s/javascript/JavaScript/
s/begining/beginning/
s/mysql/MySQL/
s/postgres/Postgres/
s/xml/XML/
s/ysed/used/
s/mongodb/MongoDB/
s/rpms/RPMs/
s/ip/IP/
s/ethernet/Ethernet/
s/linux/Linux/
s/rsolv.conf/resolv.conf/
s/avialable/available/
s/github/GitHub/
Delete unnecessary passenger SELinux setup on node

Delete some SELinux configuration that is not actually needed on the
node.  Similar changes have already been made to the kickstart script
(commits 8ddfe83a2b6e92d3cd48a5f5ddfea5b9993165f2  and
60bc2306bdc512b3abe7b54f3c0cb9e443095444 in the enterprise git repo)
and to the deployment guide.
Another typo fix
More minor case and punctuation fixes
Tweak headings

Use gerunds instead of imperatives.  Capitalise more consistently.
Style names of files and commands or consistently.  Change "setbool" to
"setsebool." Other small tweaks to headings.
updates
updates
merge conflict
new chapters
Added up to Lab 30
updates
finished draft
Added slides and pdf manual
Fixed bug with package statement in JEE lab