Changes in 2.1.0 (2018-02-18)
   o New type has been added to the routine "envelope" to compute the LE-envelopé.
   o Routine "highpass" now have a parameter to control the order of the filter.
   o A new routine was added (lowpass).
   o Changes on code of the routine movingaverage.

Changes in 2.0.2 (2018-02-09)
   o A new routine was added (phasestats).

Changes in 2.0.1 (2017-03-14)
   o A bug was fixed in the routine onoff_bonato.
   o The envelope now can be passed as a parameter in the routine onoff_singlethres.
   o Minor changes in documentation files 

Changes in 2.0.0 (2015-08-05)
   o Pre-processing routines (highpass, whitening) were added.
   o A routine to read files in format ABFv1.0 was added.
   o Routines were created to convert data frames, matrices and vectors to EMG data format.
   o The EMG class now supports multichannel data.
   o All the routines were changed so they could work with multichannel data.
   o Actual data were added (both tabular and in ABF format).
   o Routines were added to automatic on/off detection in EMG signals.
   o Routines were added to compute measures of quality of automatic detection of activity phases.
   o Unnecessary calls to 'match.call' where deleted.
   o Pre-processing routines were separated of the basic processing routines.
   o Fixed some minor bugs.
   o Corrected typos in .Rd files.

Changes in 1.0.3 (2015-07-04)
    o Undefined globals corresponding to functions in
the default packages now are imported into the package
namespace

Changes in 1.0.2 (2015-04-09)
    o Minor change in the DESCRIPTION file 
    o Date field updated in the DESCRIPTION file

Changes in 1.0.1 (2015-04-08)
    o Minor changes in documentation files 
    o Tidied up the R code using the formatR package