Added solution to ex1-24.scm
Rollback changes to ex1-22.scm
Merge pull request #14 from luisfbbm/master

Exercise 1.24
Merge pull request #15 from GusTheSadGeek/master

Exercise 1.26
exercise 1.23
Merge github.com:grahaminn/SICP
exercise 1-30
Merge pull request #17 from GusTheSadGeek/master

Ex1.29
exercise 33. I wish they'd introduce map/filter/fold soon, getting bored with all these params
Exercise 1.32