This is Roundcube Webmail 0.9.5 on SME8 - I don't see any evidence of Tasks or a Task Plugin in the default download.
Installed Plugins in default download:
calendar 0.9-beta GNU AGPLv3 Download
carddav 0.8.0 GNU GPLv2
contextmenu 1.10 GNU GPLv3+ Download
emoticons 1.3 GNU GPLv3+
markasjunk2 1.6 GNU GPLv3+ Download
newmail_notifier 0.4 GNU GPLv2
vcard_attachments 3.2 GNU GPLv3+
BTW i haven't managed to get your RoundCube 1.0 contrib to work on SME8.
I started with RoundCube 1.0 and followed (or so I thought) the uncomplicated instructions in the HowTo, but didn't manage to get it up-and-running:
yum --enablerepo=stephdl,epel install smeserver-roundcube
then
rcplugin_update.sh
then
signal-event post-upgrade; signal-event reboot
Foolishly, I didn't make a note of the SME response, but went on to run the first command for Roundcube 0.9.5 and it worked as expected.
I have since rerun the CL commands for RCv1.0 in the hope of overwriting my RC-0.9.5 install with the RC-1.0 - I have just tried this again and post the results below:
epel | 3.7 kB 00:00
epel/primary_db | 3.2 MB 00:00
Excluding Packages from CentOS - os
Finished
Excluding Packages from CentOS - updates
Finished
Setting up Install Process
Nothing to do
[root@home ~]# rcplugin_update.sh
-bash: rcplugin_update.sh: command not found
Is this expected behavior?