Help images for merge and rebase: first version
Help images for merge and rebase: improve caption
Help images for merge and rebase: add images for pull (1. fetch only, 2. merge, 3. rebase)
Help images: improve way of showing remote comments
Help images: gray branches lines for the upper three images
Prepare 3 images for Pull dialog
Prepare 3 images for Pull dialog / remove border
Export images for Command Merge and Rebase
Add fast forward images
fix ff box size
add text for fast forward
Improve merge ff convergence
add branch labels
fix remote / local for rebase
improve remote / local label for rebase; move merge commit from left to right