v0.5.2

Ch5 correction.

v0.5.1

Formatted ch5 and minor corrections

v0.5.0

Concluded ch5

v0.4.2

Specified MapReduce relevance for this project at the beginning of ch 4.

v0.4.1

Applied grammatical corrections to chapter 4

v0.4.0

Concluded ch4

v0.3.1

Applied grammatical corrections to chapter 3. Added dedication.

v0.3.0

written ch3

v0.2.2

corrected grammatical errors in ch 2

v0.2.1

Highlighted terms in chapter 1