Adding more chain methods
Adding Tests
Removing commented tests
Merge pull request #18 from ankurp/add-chain-methods

Adding more chain methods
Update README.md
Update README.md
Updating Podspec
Merge branch 'master' of https://github.com/ankurp/Dollar.swift
Adding each and map overloaded functions with index
Merge pull request #21 from ankurp/each-map-with-index

Adding each and map overloaded functions with index
Added slice method
Merge pull request #22 from MattFaluotico/master

Added slice method
Update README.md
Adding better docs
Merge pull request #23 from ankurp/better-docs

Adding better docs
Adding adding functions docs
Merge pull request #24 from ankurp/better-docs

Adding adding functions docs
Update README.md
Update README.md
Improve frequencies method

Now allow frequencies to be passed a function.
The resulting dictionary will be the frequency of results when applying
the function.