Published pages error_404 and privacy

These pages were not being generated because of the draft functionality that was 
previously implemented. Since these did not have the "published: 1"  YAML 
metadata, the pages were not being generated. This commit fixes that issue.
Added license page with copyright information
Added link to license page in the footer
Fixed journal post bug and YAML front-matter bug.

Fixed journal post bug

  When a post was created (using `grunt task`) in a journal directory, and if 
  that post already existed, the expected behavior was to open that existing 
  post instead of creating a new file. What actually ended up happening was a 
  new file was created with the date appended a second time. This commit fixes 
  that bug. Now, if a journal entry exists, that file is opened.

Fixed YAML front-matter bug

  There was a missing newline after the published key-value, resulting in 
  malformed YAML front-matter. This has been fixed.
Updated site design, added key sections, and added skills

CSS updates include

  - changed background to bg-skulls.png
  - set rating-icon imgs to inline-block so that they can remain inline in case 
    img is ever globally changed to block
  - removed content border for a more flat-design style
  - set a global img width of 100%. This is to target images within content so 
    that they span the entire width of the post section. Any other img (for 
    example, template images) should explicitly define a width. This is 
    necessary since post images are embedded in markdown posts and a class 
    element cannot currently be defined in such a section.
    - social icons have been updated to have a width of "auto" so that they are 
      not effected by the global 100% img width.
  - skill key stylings have been added
  - skill names (above posts) have been aligned to the right to balance out the 
    content distribution of meta info (keys are to the left)
  - fixed post content-meta elements so that paddings and margins fit in with 
    the new skills and keys sections

Structural updates include

  - updated templates to include keys section and reorganized layout structure 
    to account for the new keys section
  - updated wintersmith-robotskirt plugin to parse skill development key 
    sections properly
  - added pickup and philosophy as skills to config.json
Updated directory structure for already-published content

- Moved articles to relevant notebook skill directories
- Added a habits page (as opposed to having it on the goals page)
- Changed projects page to curriculum-vitae page and updated paths database 
  changescript to account for this url change
Published first pickup journal entry
Added fossil ignore rules