Test and robustify

[sweavo]

Hi,

Thanks for this cool script. I noticed a bunch of bash errors when you give it an argument with spaces in, e.g.

$ spotfind.sh "Disk Utility" 
spotfind.sh: line 8: [: too many arguments
spotfind.sh: line 12: [: too many arguments
spotfind.sh: line 12: [: too many arguments
spotfind.sh: line 12: [: too many arguments
spotfind.sh: line 41: [: too many arguments
spotfind.sh: line 41: [: too many arguments
spotfind.sh: line 56: [: too many arguments
spotfind.sh: line 56: [: too many arguments
spotfind.sh: line 58: [: too many arguments
spotfind.sh: line 58: [: too many arguments

...so I added a bunch of quote marks in the if statements.

I also added a couple of tests. t2.sh reproduces the bug.

Hope you enjoy!

Steve