Re: Mozambican War of Independence

Made 3 changes as discussed on SGGH talk page. Added a bried "Aftermath" section
at the end. Since I deleted reference to RENAMO pre-1974, I added this brief reference
and link to RENAMO and the Mozambican Civil War which followed to clarify their
role. I also added
a reference to my article on Uria Simango, Mondlane's vice-President. The article refers to a power-struggle after Mondlane's assassination leading to a drastic move to the left: this seems like the best place to refer to him.