Implemented ruby version of the INT() excel function
Implemented C version of the INT() excel function
Prepared for 0.1.7 release
Remove new lines from formulae when extracting
The implementation of INT() - missing from a previous commit
Implemented the LARGE excel function
Implemented the LARGE excel function
Remove chartsheets from the list of worksheets
Attempts to replace OFFSET() functions with references at runtime (OFFSET not implemented at runtime)
Start to fix #lines -> #each_line deprecation warning
Added example working directory to gitignore
COUNT() functions are now replaced with values at compile time where possible
Make sure offset value can cope with numbers as strings
Don't inline the first argument in an offset
Add an example spreadsheet that uses offsets
Add an option to allow only named references to be settable
Fixed a bug in array formulae expansion: now copes with functions that have a variable number of arguments
Fixed a bug in replacing some table references with their values
Fix bug in the treatment of array results when simplifying INDEX functions
Replace deprecated #lines with #each_line