add vincenty function
Merge branch 'master' of git://github.com/php-geospatial/geospatial into vincenty

Conflicts:
	geospatial.c
	php_geospatial.h
remove merge flags
Merge pull request #6 from natmchugh/vincenty

Vincenty
Fixed uninitialised variables in case the ellipsoids weren't set.
Use geojson for in- and output coordinate pairs

Also fix prototypes where necessary.
General formatting changes and license headers.
Merged pull request #7
Merge branch 'master' of github.com:php-geospatial/geospatial

Conflicts:
	php_geospatial.h
GeoJsonify the vincenty function.
Merged pull request #8
Merge branch 'master' of git://github.com/php-geospatial/geospatial
Add README