Added value transformations for columns
Merge pull request #12 from santiagobasulto/value-transformations

Added value transformations for columns
Update README.md
++ description for "fail_fast"

as a first time user, i found it not-described. so, why not write up the description by myself ?
Test skipped columns
Skip column when it's defined as 'skip=True'
Merge branch 'master' of https://github.com/santiagobasulto/smartcsv into skipped_columns

Conflicts:
	smartcsv/reader.py
Skip columns
Merge pull request #14 from martinzugnoni/skipped_columns

Skipped columns (Solves #3)
Merge pull request #13 from kmonsoor/patch-1

++ description for "fail_fast"