Add summary() function for DataFrames
Merge pull request #374 from jvns/master

Add summary() function for DataFrames
Display a summary if there are more than 15 columns. Fixes #373.
Decide about dataframe printing more intelligently

Decide whether or not to print a dataframe based on whether its printed
width is more than Base.tty_cols().
Use mapreduce instead of list comprehensions to calculate max column length
Fix getindex() type ambiguity
Merge pull request #378 from jvns/type-errors

Fix getindex() type ambiguity in DataArray
Merge pull request #376 from jvns/master

Display a summary if there are more than 15 columns. Fixes #373.
rename min/max --> minimum/maximum where they are used for reduction
merge dh/minmax
This patch fixes all errors that failed the tests
Put on the travis logo
fix a bug that will only be trigged when showing a data frame that is too wide.
modify travis.yml (disable apt-get upgrade)
fix a typo in travis.yml
max - in indexing.jl
Merge pull request #388 from milktrader/max2maximum

max to maximum in indexing.jl
Fix new ambiguity warnings
complex subsets syntax
Merge pull request #394 from garborg/doctypo

Doc typo - complex subsets syntax