Mussagl Manual: Updates for Docs 1.0
* Moved UCSC tutorial toward end, but linked to from Obtaining Data section.
* Added animated gif under dynamic threshold section.
* Documented command line options. (tickets: #167, #225)
* Mentioned Python existing in Mussagl. (tickets: #167, #227)
* Updated repeats documentation. (tickets: #167)
* Updated .mupa file format description.
* Added note about .mupa comment character.
* Added a create .mupa section for UCSC tutorial. (ticket:164)
* Linked to Diane's OverlappingWindow wiki page (ticket:137)