Sending reports and timestamped file by emailing

Illustrates result updates, activity tracking, timestamping and file zipping, tarr'ing via email.

main executing reference usage:
[1] usage_send_mail.m
Illustrates email sending with multiple separate files or single timestamped tar file. Attachment failure is properly handled, with continuation of report emailing without the attachment.

[2] usageTar_unTarFiles.m
Illustrates 'zipping and unzipping' of tar files. Timestamping facility is also provided. The timestamp is also adapted for files with multiple extensions, ie. *.tar.gz, etc.

----------------------------------------------------------------------------------
The objective is to illustrate updates of matlab results activity tracking via email. The sub-objectives subsume illustrations of utilities for timestamping and file zipping/ tar'ing.

This subsumes an enhanced version of matlab gmail'ing (http://www.mathworks.com/support/solutions/data/1-3PRRDV.html). The enhancement includes:
1. Better handling of attachment failure, with continuation of report emailing without the attachment.
2. Timestamping of tar files, precision may be in minutes, seconds or in milisecs.

Sample output:
MATLAB:sendmail:CannotOpenFile
Cannot open file "images\fileThatDoesNotExists.bmp".
Email sent without attachment. [attachment Failed]
Email sent.

* Caveat : Illustrative Purposes. Please include your own sender gmail account and password.

If the demo has more elegant presentation, please do not hesitate to suggest and send feedback to author.
Email: [e-mail].

Thank you.

Regards,
Michael Chan JT