Initial work on documentation, big commit.
Fixing main tutorial page with tutorial_... anchors.
Added STXXL Vector tutorial section, Added STXXL Vector examples
Added STXXL tutorial section, added STXXL stack examples
Added STXXL Priority Queue tutorial section, Added STXXL Priority Queue examples
Squashing chain of documentation commits.
Added STXXL Queue tutorial section, Added STXXL Queue examples
Added STXXL Deque tutorial section, Added STXXL Deque examples
Added STXXL Deque tutorial section, Added STXXL Deque examples (2)
Added STXXL Map tutorial section, added STXXL map minimal example
Added STXXL sorter tutorial section, added STXXL sorter minimal example
Cleaing up whitespace and indentation of examples.
Merge github.com:bobbthebuilder/stxxl-doc