Fix style and descriptions of professions.

* Standardized the indentation and spacing of the entire professions file.
* Bumped the point cost of Tinkerer to 4, since he gets 4 skills in addition to the tool belt.
* Mechanic and Tailor both start with a level in the relevant skill instead of a training book, just like every other profession.
* Since your starting equipment is now displayed, various redundant "You start with &lt;list of equipment&gt;" lines were removed from descriptions. Where possible, flavor text was put in their place.