Added basic bash functions with pre-coding steps

Just thought it could save people some time to share this.
change the breadcrums to show the date instead of the long title
fix problem with unrelated videos appearing for members

also added options to update_videos management command:
  --current-knesset    run only for current knesset members
  --only-member-ids    run only for specific member id
small but confusing typo: s/make.html/make html/
randomize tidbits in home page
moved the bash functions and ide setup to tips section
Merge pull request #84 from JeniaSkorski/master

Change the breadcrumbs to show the date, closes #4054
Merge pull request #87 from yoniYalovitsky/patch-2

small but confusing typo in css_docs: s/make.html/make html/
Merge pull request #88 from or2008/master

randomize tidbits in home page
Merge pull request #75 from yoniYalovitsky/patch-1

Added basic bash functions with pre-coding steps
Merge pull request #85 from astupidog/video_fixes

fix problem with unrelated videos appearing for members