2) Add correct dependency in pom.xml

about function calls.

Parse.java:
        Added comments

    JavaParser.java:
        Updated the genSymbols method and a private class 'NodeVisitor' which
        implements ASTVisitor.  genSymbols returns an instance of the
        Symbols class containing all relevant data about the Java code.

    JavaSymbols.java:
        Add fields which map class, interface, method, field, and
        variable names to positions.

Add:
    c.py
        - CTreeCutter class is very similar to PyTreeCutter. It utilizes
          self.cache as opposed to PyTreeCutter which doesn't yet.
        - CTreeCutter visit functions simply add start and end lines of
          the node to the cache, and visit_Decl pushes the cache onto
          accum.
        - parse_c performs a task identical to parse_py.  However, many
          c files need to be pre-processed before they are parsed.

Mod:
    python.py
        - Add self.cache to allow for saving of unassocaited metadata as the
          PyTreeCutter moves down the syntax tree.
        - Update docstrings.

tasks as previous version, but is more concise.
Add:
    bitshift/parser/python.py:
        Add PyTreeCutter class to perform actions on specific nodes.

bitshift/parser/__init__.py

Add:
    bitshift/crawler/crawler.py
        -Add more efficient method of querying GitHub's API for stargazer
        counts, by batching 25 repositories per request.
        -Add watcher counts for Bitbucket repositories, by querying the
        Bitbucket API once per repository (inefficient, but the API in question
        isn't sufficiently robust to accommodate a better approach, and Git
        repositories surface so infrequently that there shouldn't be any query
        limit problems).

Several of the closed issues were addressed partly in previous commits;
definitively close them with this, for the moment, final update to the crawler
package.

Ref:
    bitshift/crawler/indexer.py
            -move all `GitIndexer` specific functions (eg, `_decode`,
            `_is_ascii()`)from the global scope to the class definition.

Add:
    bitshift/
        __init__.py
            -add `_configure_logging()`, which sets up a more robust logging
            infrastructure than was previously used: log files are rotated once
            per hour, and have some additional formatting rules.

        (crawler, indexer).py
            -add hierarchically-descending loggers to individual threaded
            classes (`GitHubCrawler`, `GitIndexer`, etc.); add logging calls.

        indexer.py
            -remove file filtering regex matches from `_get_tracked_files()`,
            as non-code files will be discarded by the parsers.

Add:
    bitshift/crawler/crawler.py
        -add `_get_repo_stars()` to `GitHubCrawler`, which queries the GitHub
        API for the number of a stars that a given repository has.
        -log the `next_api_url` every time it's generated by `GitHubCrawler` and
        `BitbucketCrawler` to two respective log-files.

Add:
    bitshift/crawler/*.py
        -Remove use of the `logging` module, which appeared to be causing a
        memory leak even with log-file rotation.