Updated CsvParser setup guesser to try to guess column types.
Slightly smarter guessing of enum/number. In general mostly string/mostly numbers should be correctly recognized as enum/number.
In addition, made special case of Y/N, yes/no,true/false with 0 as NA.
Add tests for automatic detection of binary columns: 0,T,F -> NA,1,0.
Fix memory leaks in ParserTest2.
add gzipped test for binary column from 0/N/Y
Add more tests for 0/N/Y.
Merge branch 'tomas-parse' of https://github.com/0xdata/h2o into tomas-parse
update in the type guesser hack for H2O1 parse2.

Added support for multi file parse.
Merge branch 'tomas-parse' of github.com:0xdata/h2o into tomas-parse
Merge branch 'tomas-parse' of https://github.com/0xdata/h2o into tomas-parse
Add test for multi-file parsing of 0,N,Y binary column.
Merge branch 'tomas-parse' of https://github.com/0xdata/h2o into tomas-parse
Fixed type guesser heuristic: added casts o double when comparing ratios.
Merge branch 'tomas-parse' of github.com:0xdata/h2o into tomas-parse
skip if NA
Merge branch 'tomas-parse' of https://github.com/0xdata/h2o into tomas-parse
type guesser change: updated the ratios required for enum type/number
Merge branch 'tomas-parse' of github.com:0xdata/h2o into tomas-parse
Add test for single and double quotes.
Fix multifile type-guesser.
Merge branch 'tomas-parse' of github.com:0xdata/h2o into tomas-parse
GLm2 update.