fixed small typos in IIS section
Wrong verb for HSTS header

`Header add` will always add the header, even if it already exists. `Header set` should be used if we want to enforce it server wide or `Header setifempty` if we want to allow users on the server to override the value.
Jabber server Prosody added
I forgot to add me. :E
Update prosody.cfg.lua
intermediate version for hack.lu
intermediate version, add missing files
add comment in README: many small commits are better
Adding history
more slides
Merge branch 'master' of https://git.bettercrypto.org/ach-master
Removing XXX
add attacks.tex (still issues with compiling that though)
add attacks.tex (still issues with compiling that though)
merge in David's changes and adapt
Merge branch 'master' of https://git.bettercrypto.org/ach-master

Conflicts:
	presentations/HACK.LU-2014/presentation/agenda.md
add images
include attack.tex in agenda.md
add more slides
Merge branch 'master' of https://git.bettercrypto.org/ach-master