Generalize DFS, make use of it in other algorithms
Merge pull request #73 from eush77/depth-first-search

Generalize DFS, make use of it in other algorithms
Contributors list
Remove license text from source files
Merge pull request #74 from felipernb/license

Single LICENSE file
Add contributors to package.json
AUTHORS extracted straight from git log: git log --format="format:%an <%ae>" | sort | uniq
Fix DFS complexity guarantee
Add Breadth-First Search
Create Graph::adjList and subobjects with null prototype (fix #76)
Merge pull request #75 from eush77/breadth-first-search

Add Breadth-First Search
Merge pull request #77 from eush77/adjlist-prototype-76

Create Graph::adjList and subobjects with null prototype (fix #76)