Install zip by default,in order to run `make build`.
Merge pull request #27 from mikulely/patch-1

Install zip by default,in order to run `make build`.
Add qemu documentation
Spelling fixes.

Spelling fixes in Chapter 2.
README.md: Correcting punctuation
Some changes in Chapter 3
Merge pull request #32 from escalant3/chapter3-fixes

Some changes in Chapter 3
Merge pull request #31 from andrewSC/master

README.md: Correcting punctuation
Merge pull request #30 from Xumeiquer/master

Spelling fixes.
Typo: access -> accessed
Typo: base->lucid32

the box name 'base' is different from 'lucid32' in Vagrantfile, which causes download box twice, one time for 'vagrant add box' another time for 'vagrant up'
Merge pull request #35 from mslevin/patch-1

Typo: access -> accessed
Merge pull request #36 from neilss/master

Typo: base->lucid32
Merge remote-tracking branch 'upstream/master'