Updated URL in library.properties

Fixing a typo

cleanup compiler warnings

Standalone html page to graphically edit fonts

#143 Use virtual destructor on base class

Fix typo

Added getColor function

fix const condition check

Method to mirror the display

Fix warnings when compiling against GCC 5.4

correct type to avoid compiler warning

Allow for use of either 128x64 or 128x32 displays

Support for custom font table look-up function

Fixed Copy function

Replaced unicode arrows with html entities for broader compatibility

Screenshot showing new features

Some UI improvements