Patch to frontend to add better timeline zoom factors

[jhgrc]

This little patch adds 30h visibility to graphs, screens etc. And modifies how the data is presented on scroll bar. Default frontend cannot tidy data so well.

So 30h => 1d6h, without this patch zabbix would show just 1d (for 30h graph).

Zoom:1h 2h 3h 6h 12h 1d 1d6h 1w 2w

diff gtlc.js /usr/src/zabbix-1.8.1/frontends/php/js/gtlc.js

1504c1504
<       var zooms = [3600, (2*3600), (3*3600), (6*3600), (12*3600), 86400, (30*3600), (7*86400), (14*86400), (30*86400), (90*86400), (180*86400), (365*86400)];
---
>       var zooms = [3600, (2*3600), (3*3600), (6*3600), (12*3600), 86400, (7*86400), (14*86400), (30*86400), (90*86400), (180*86400), (365*86400)];
1512c1512
<               caption = caption.split(' 0',2)[0].split(' ').join('');
---
>               caption = caption.split(' ',2)[0];