Fix custom icons loading

1.4

manually load icon from custom schema before action registration. Fix #5

Support CLion/AppCode execution targets

Now plugin register action not only per-Executor (Run/Debug/Coverage/...) but per-Executor-per-ExecutionTarget.
It allows to assign shortcut to any required combination.

If you choose to run action WITHOUT ExecutionTarget, aka CMake profile in CLion (E.g. `Debug 'Run 2' from screenshot) plugin will use already selected target.

If you choose to run action WITH ExecutionTarget (E.g. `Debug 'Run 2' Release from screenshot), plugin will select specified target before run action.

IDEA 2018.2 support

1.2

2018.2 support added

Properly load custom actions to Navigation Bar Toolbar

fix toolbar name

properly count of registration count
properly handle overwrites/dialogs

First release

1.0

allow to force update main tool bar too