Few minor changes.

vim:
	- forward delete word in insert mode (Alt + d).
	- editing latex mode disables syntactic. a bit hack, should
	  invent something nicer.
	- set spell on for latex files by detaulf.
i3:
	- try to remap resize keys for something more convenient, though
	  doesn't work.
profile:
	- alias sudo = sudo -E was stupid, get rid off it.