Silly mistake when calculating origin position.
Internal checks for valid RA, DEC from results.
Potentially found a massive problem with the original
query code. Have changed it to reflect spherical coordinate
transformations more accurately and it seems to have fixed
a problem.
Adding a command to modify origin.
Fixed another problem with default values.
Merge branch 'zen' of https://github.com/IntersectAustralia/asvo-tao into zen