Update description

Fixed the mismatched vignette index entries

Updated Description for sf Package

Changes for v0.2.1

Minor changes 0.1.7

Last commit before 0.1.6

Final push for v0.1.4

Updated version number

Checked for duplicates in BAUs_from_points()

Final minor changes for v0.1.2

Added zzz.R (unLoad)

Added FRK-init.c, FRK-win.def, and header files for native symbol registration
Added .registration=TRUE to @useDynLib