Removed jss tex files as they are available in the latest R, fixed package namespace and dependencies.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ifrogs@6 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Tests to validate functions that compute volatility indexes.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ifrogs@7 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Added testthat to dependencies, bumped version to 1.1, changed maintainer.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ifrogs@8 edb9625f-4e0d-4859-8d74-9fd3b1da38cb