Adds check to ensure cache directory exists before caching the ladder since otherwise pickle.open will raise IOError
Merge pull request #1 from mtgorski/develop

Fixes IOError raised for fresh clones of the repo
Modifies docstrings of some analytics functions to indicate that they do not return percentages, only counts
Makes percentages in reporting sensitive to the size of the league since using the default 15000 would give inaccurate results for small short term events
Modifies the level breakdown and reporting to allow for level groupings of different sizes
Merge pull request #2 from mtgorski/develop

Analytics changes
Updates requirements and README to remove RRD
Merge branch 'master' of https://github.com/willroberts/pathofexile
Changes pickle to cPickle
Merge pull request #3 from mtgorski/develop

Changes pickle to cPickle
Adds shop thread parsing
Ignore RRD files
Updates README
Updates README
Update README.md
Adds anchors to README
Adds forum post isolator for iframe embeds
Removes unused section
Updates docstring
Adds jinja2 to requirements