add Litecoin address and compressed address support
incorporated compressed OpenCL generation from https://github.com/scintill/vanitygen/branches/compressed_opencl
add bulk wallet and paper wallet generator scripts
some bulk wallet optimization
Echo of random seedfile can be null.

The error message was created from the 'optargs' variable which is only correct if the -s whatever was the last item on the command line.
Use /dev/random by default if available.

General security principle,  always default to the most secure option. If someone wants to -s /dev/zero the still can of course,  but we assume they know what they are doing!

Not all non windows platforms have a /dev/random, you can disable it on Linux if you really want to, so we check first.
Downgraded RNG seed message to -v only

Now we read from /dev/random by default, this message isn't really that important anymore.
Fixed returned number of processors on Mac OSX. Tested on Mac OSX (and Ubuntu). Source: http://stackoverflow.com/questions/150355/programmatically-find-the-number-of-cores-on-a-machine