add --around options
ultragrep.yml.example change to include any app log
Merge pull request #14 from zendesk/vkmita/vkmita/zd490995_v2

ultragrep.yml.example change to include any app log
use format
reuse filetype
Merge pull request #15 from zendesk/apanzer/use_format

use format
Merge pull request #16 from zendesk/ben/more_zran_work

Build gzipped indexes
require debugger.  redefine HOUR nad DAY
Merge branch 'ben/more_zran_work'

Conflicts:
	lib/ultragrep.rb
totally missed the bin
fix tests