Fix cost function default weight bug

v1.1.2

Update cost_functions.jl

Warning fix

v1.1.1

Update cost_functions.jl

First differences in likelihoods

Merge pull request #75 from Vaibhavdixit02/editbranch2

Added first difference to L2Loss and changes in Likelihood tests

Fix tests and lsoptim

v1.0.1

Update dde_tests.jl

Syntax change

v1.0.0

Update REQUIRE

Likelihood Loss

v0.8.0

add likelihood test

Test fixing

This just fixes tests on release, but might be important when looking at Julia v0.7 releases.

DDE tests

v0.7.1

Merge branch 'maste'

Weighted loss functions

v0.7.0

Update .travis.yml

Regularization and loss value printing

v0.6.0

Merge remote-tracking branch 'origin/master'