Report: add scrolling on the <tbody>.

With this commit, the <tbody> of the static reports can be scrolled
while the <thead> stays fixed. This has a drawback: when the column is
too large (e.g. a tag --- disallowing a line break --- is longer than
the column should), it breaks the hsync between table header and body.
Report: translate to pure english.
Report: resyle salary filter.
Report: restyle salary slider.
Report: vertically center filters.
Report: horizontally center filters.
Report: minor change on salary range UI.
Report: fix indentation.
Report: recover calendar icons.
Try P2P mode
Merge branch 'unstable' of github.com:yoannsculo/JobCatcher into unstable
Report: fix bug on NA checkbox persistance.

Fix bug comming from commit a8a7223.
Remove files from old version.
Add gitignore for generated .txt.
Report: move pagination navbar to upper right.

This way, the pagination navigation bar --- the thing which let you fo
from one page to another --- stays at a fixed position. Hourra!
Report: fix issue #21.

Set the position of the "Prev" button on a fixed position at 11.5em of
the right-hand border of the screen.
Report: fix bug on pubdate filter.
First version of P2P