Handle long job name

[qianyuanzhu]

Set displayed length maximum to 80 for template table and job table

Fixed #290

[MorganRodgers]

The magic number 80 should be pulled out into a variable or constant.

[qianyuanzhu]

text-overflow: ellipsis; white-space: nowrap; overflow: hidden; requires table-layout: fixed
So the column width is fixed and I set the width of job name column to be 50% in the table.

[MorganRodgers]

This is a much better solution than the fixed character count.