Whitespace changes to schema file

Not sure why there was an extra line there, but it's gone now.
Fixing error with current_user helper

Searching using find instead of find_by which inadvertently caused exception to be raised when session id was present but user was not present.
Adds arbitrary chart code to current_project view partial and comparison_chart.js

- dataset currently used on chart is stubbed and does not connect to wordcount or timestamps taken when project is updated.
post initial migration commit on new branch
Adds milestone model and migration.

Adds chart to comparison_chart.js with stub data.
Updates project model to include relation to milestone model.
Updates milestone migration with proper relation to project.

- Now milestone object is created when wordcount is updated on project.
Merge pull request #86 from tiger-swallowtails-2014/E_J_charts

E j charts
ES -- chart not updating AJAX-y yet, but all other functionality still working.