Looking for a program to document things in life.

Hello all. I'm looking for (a) program(s) to manage & document things in life. Mainly these features are what I need:

• Diary, random notes(like a wiki?) with version control
• TODO list, auto added to diary at that time period
• Ability to attach images and text files to those diary, notes
• Calendar with schedule synced with TODO
• Easy backup, preferably in plaintext or simple db
• Text search

Currently I'm using SeaMonkey and my phone(android) to manage calendar (so two separated ones), a paper note to write diaries and use dokuwiki for random notes. This setup is too complicated and isn't productive at all.

I do think my requirements are kinda abstract, and there most likely isn't a single program that can do all this. Although basic I'm a novice FreeBSD & Emacs+evil user so *nix-only or text-based utilities are okay. I'm not aware of any program that meets these needs, is there anything that resembles what I'm thinking? Thanks!