Added functions that supposed to appear at application start
Change the way renderer gets it's initial size values
Hide scrollbars
Add method for extrapolation at boundaries
Add a brand new bicubic interpolant (not properly working yet :-)
A little refactoring
CubicInterpolant now can be built in constructor
CubicInterpolant now gets a matrix of nodes instead of row-by-row given vectors of nodes
A little new-line reformatting
Grid type selector is temp. removed and cubic plot type is now checked by default
Add a plot type selector functionality
Add support for touch events
Merge pull request #8 from mr-m/master

New touch events handling and other changes