start on filter
Merge branch 'master' of https://github.com/scalanlp/breeze into filter1

Conflicts:
	src/main/scala/breeze/signal/package.scala
add hamming window and tests
sinc, sincpi
sinc/sinc tests
Sorry, git issues
David's suggestions
Merge pull request #120 from ktakagaki/filter1

Added sinc and sincpi, hamming window
sinc/sincpi documentation
Merge pull request #133 from ktakagaki/filter1

sinc/sincpi documentation
firwin with tests
Merge remote-tracking branch 'remotes/scalanlp/master' into filter1
odd and even testing
odd/even testing fix tests
odd/even Git branching
odd/even formatting
Filter Kernels and firwin design
Merge branch 'oddeven' into filter1
filter testing firwin
First stab at filter functions