- split rules to 2 types: node checker, and tag checker
- filter rules by tags in iterator
- filter rules by scope (now it's only function scope)
- patch rule files (set scope everywhere)

- remove doctrine, add jsdoctypeparser for parsing doc types
- rename jsDoc to jsdoc for simplicity
- rename forEachTag to iterate
- remove data property, extend DocComment object
- simplify param checkers

Fixes #3

Fixes #32

- add basic tests for configuring with empty data
- add configure and check helpers to tester
- change mocha reporter to dot

- create DocLocation class with line and column
- add loc field to DocType, DocName and DocTag
- split params to several files
- add tests for jsdoc classes