taskbrowser: fixed "deprecated conversion from string constant to 'char*'" compiler warning

...by making histfile a const char *

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
deployment: stop, cleanup and unload components in the order they were loaded

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
deployment: reversed and fixed group counting in configureComponents() and startComponents()

* configureComponents() and startComponents() is now configuring and starting groups in forward order.
  The old implementation used reverse order and "forgot" the first group (group 0).

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
Merge pull request #22 from meyerj/ocl-taskbrowser-deployment-fixes

deployment: stop, cleanup and unload components in the order they were loaded