Update readme.md

By default, json_encode() isn't available in Ubuntu 13.10's php5 package. You need to separately install `php5-json`.
Readme update for PHP Timezone Config

Update Readme to include description of how to update PHP timezone setting.  Is a solution to fix issue #113.
Correct formatting

Correct formatting from earlier pull request
Merge pull request #145 from tdereus/patch-1

Readme update for PHP Timezone Config
Merge pull request #142 from fab13n/master

Update readme.md (install php5-json)
First attempt
Basic packaging
Fix timestamp
add debian build artefacts to .gitignore
Changed to v7, prior was a silly idea
restructure for clean debian install
Remove premature dbconfig dependency
final draft including TS key
backup of settings
remove extraneous config file from install
increase config question priority and improve postinst output.
Merge branch 'master' into rework

Conflicts:
	readme.md
Update COPYRIGHT.txt
Update readme.md
Update readme.md