v 1.8

1. Update the arfima function in forecast.ftsm

v 1.7

1. Change the package dependency of fds
2. Update the forecast.ftsm() function (allowing struct and arfima models, and fixing the way stationary models are used)
3. Update the isfe.fts() function (adding ar and arfima as possible forecast methods)
4. Make plot.ftsm visible
5. Update plot.ftsm to allow plotting specific components

v 1.6

1. Update the JCGS reference

v 1.5

1. Update the ftsa:::me function
2. Add the ftsa:::mpe function

v 1.4

1. Update dynupdate function to incorporate three ways of computing functional principal component analysis.

v 1.3

1. Add dynupdatelambdaselect function. 

v 1.2

1. Correct the extract function
2. Add ftsmweightselect and fplsrweightselect functions to determine geometrically decaying weights

v 1.1

1. Update the references
2. Correct the yname of a functional object