Changes in publisher's statistics view

This release introduces few changes in the publisher's statistics view. Changes concern interface only (not API).

Changes of indicators' names:

• "All impressions" is changed to "Total potential Impressions"
• "Cookie Impressions" is changed to "Total Potential Cookie impressions"

Campaigns / Placements table:

• Table headers changed, so that they better describe column content. In particular, whether unused impressions are included in the presented statistics value or not.
• Hoovering the mouse over clickable (blue) icon in "Stats" column highlights it.
• Fixed height of table headers.

Months / Days table:

• For "All Potential Impressions" statistics, in case no particular campaign has been selected, "All clicks" column is replaced by "Unused Impressions" column.
• Fixed height of table headers

statistics