add extension ac-helm.
add mode-icons.
disable mode-icons.
improve current line highlight style.
add projectile mode-line identifier to my custom mode-line.
update projectile init file.
update eshell configs.
update my mu4e compose hook settings.
change mu4e highlight line face style.
use helm for projectile completing system.
add my custom projectile prefix map for adding new custom keybindings in future.
add more abbrev modes.
add abbrev sis -> sister-bitch in Org-mode.