Bug 1298855: new method Plugin::sanity_check() that is called upon install or
update of the plugin. Caught exception InstallException results in the
error-message being presented to the user and the plugin not being installed
while the installation process continues

Change-Id: Iba04bbfebe7b192409cd2e943d7449f0ec258eca
Signed-off-by: Tobias Zeuch <tobias.zeuch@kit.edu>
Merge "Bug 1298855: new method Plugin::sanity_check() that is called upon install or update of the plugin. Caught exception InstallException results in the error-message being presented to the user and the plugin not being installed while the installation process continues"