(c)sysdig binaries bundled in 0.1.42 not working on Ubuntu 14.04

Hi,

First, congrats for releasing sysdig-inspect, it looks amazing!

Small bug report (for sysdig-inspect_0.1.42_amd64.deb): on Ubuntu 14.04, the bundled binaries of sysdig and csysdig don't work, because of that:

$ /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/sysdig --help
/usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/sysdig: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/sysdig)
/usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/sysdig: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/sysdig)

$ /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig --help
/usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig)
/usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig)
/usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig)

Context:

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.5 LTS
Release:	14.04
Codename:	trusty

$ dpkg -l | grep sysdig
ii  sysdig                                                0.18.0                                                            amd64        sysdig, a system-level exploration and troubleshooting tool
ii  sysdig-inspect                                        0.1.42-1                                                          amd64        Sysdig Inspect

$ apt-cache policy sysdig
sysdig:
  Installé : 0.18.0
  Candidat : 0.18.0
 Table de version :
 *** 0.18.0 0
        500 http://download.draios.com/stable/deb/ stable-amd64/ Packages
        100 /var/lib/dpkg/status
<snip>

As a workaround, I've symlinked /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/csysdig to /usr/bin/csysdig (and same for sysdig), and so far it seems to work. I hope at some point you will publish sysdig-inspect on your apt repository, with a dependency on sysdig to replace bundled binaries.

Start by reproducing the --help failures for the bundled sysdig and csysdig under /usr/lib/sysdig-inspect/resources/app/ember-electron/resources/sysdig/ on Ubuntu 14.04, then compare them with the working /usr/bin binaries mentioned in the workaround. Done means the packaged binaries run without the reported GLIBCXX or CXXABI errors, or the package consistently uses an appropriate sysdig dependency.