removed PHP 5 dependencies and added php7.0-mbstring dependancy

[dotps1]

Removed the php 5.0 dependencies from the install.sh script. I also added the php7.0-mbstring dependency that was being called by the index.php. The missing dependency would cause a 500 error and throw and error in the /var/log/apache2/error.log

PHP Fatal error:  Uncaught Error: Call to undefined function mb_convert_encoding() in /var/www/html/index.php:53\nStack trace:\n#0 /var/www/html/index.php(24): prepareJSON('{"beerName": "S...')\n#1 {main}\n  thrown in /var/www/html/index.php on line 53

This can all be found in issue #39.

[elcojacobs]

Thanks for the PR :)
I have not had time to test this yet, but will merge this later.

Regarding configobj, it's already installed a few lines down using pip, why is the apt install needed?

[dotps1]

here is the output from running the brewpi.py

pi@brewpi:~ $ sudo -u brewpi python /home/brewpi/brewpi.py
BrewPi requires ConfigObj to run, please install it with 'sudo apt-get install python-configobj
pi@brewpi:~ $ sudo apt-get install python-configobj
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
  python-configobj-doc
The following NEW packages will be installed:
  python-configobj
0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
Need to get 35.2 kB of archives.
After this operation, 166 kB of additional disk space will be used.
Get:1 http://mirrors.syringanetworks.net/raspbian/raspbian stretch/main armhf python-configobj all 5.0.6-2 [35.2 kB]
Fetched 35.2 kB in 1s (24.6 kB/s)
Selecting previously unselected package python-configobj.
(Reading database ... 123716 files and directories currently installed.)
Preparing to unpack .../python-configobj_5.0.6-2_all.deb ...
Unpacking python-configobj (5.0.6-2) ...
Setting up python-configobj (5.0.6-2) ...
pi@brewpi:~ $ sudo -u brewpi python /home/brewpi/brewpi.py
BrewPi requires psutil to run, please install it via pip: 'sudo pip install psutil --upgrade
pi@brewpi:~ $ sudo pip install psutil --upgrade
Collecting psutil
  Using cached psutil-5.4.1.tar.gz
Building wheels for collected packages: psutil
  Running setup.py bdist_wheel for psutil ... done
  Stored in directory: /root/.cache/pip/wheels/05/a2/2a/2015d6af91fb5a4cc5bcdfa9699034e2f624fc9cc5acde7ab9
Successfully built psutil
Installing collected packages: psutil
Successfully installed psutil-5.4.1
pi@brewpi:~ $ sudo -u brewpi python /home/brewpi/brewpi.py
 Nov 26 2017 10:10:30   Notification: Script started for beer 'My First BrewPi Run'
 Nov 26 2017 10:10:30   Connecting to controller...
 Nov 26 2017 10:10:30   Opening serial port
 Nov 26 2017 10:10:30   Checking software version on controller...
 Nov 26 2017 10:10:40   Warning: Cannot receive version number from controller. This could be because your controller is not programmed or running a very old version of BrewPi.This script will now exit.
pi@brewpi:~ $

this is a fresh install, so when I run the python script, it appears to be missing both python-configobj and psutil from pip.

[RacerEvan55]

Has this been merged yet? I'm still getting exactly the same error as in #39