[refactoring] rename classes
issue #71: added an additional icon on the right side
issue #72: split major and minor text views at list element in two parts
[improvement] use new two text column feature at list item
[improvement] added author and version info
[improvement] show the description for each element
[improvement] use right icon and minor text to show status of the task
[improvement] show actions of our inventory
[improvement] show status text on the right side
[bugfix] doesn't set context object by parameter to avoid exception at
race conditions
[bugfix] use the application context to create a progress dialog to
avoid exceptions (race-conditions)
[debugging] extend traces
[refactoring] remove empty file
[bugfix] set layout parameter for right minor text label
[bugfix] remove unknown import
[bugfix] revert change - exception during startup
[improvement] optimize list handling/performance - reduce View object
creation, use view holder pattern
[bugfix] force new layouting
added TODO
[improvement] added method createView() and updateView()