Generate call graph for c/cpp functions
This release mainly introduces new search backend for call-graph. previously the only search backend is Gnu Global, now Git (git grep) is added as backend.
;; 0.1.2 Automatically save cg--caller-cache into desktop file. ;; Add `cg-add-caller' to manually add callee <- caller. ;; Refactor code ;; 0.1.3 Set buffer unmodified. ;; Recover position after collapsing and expanding.
First release