fix always retrun 8 bpp, and add 8 bpp color depth checking
add fresh_rate/graphic_memory functions
fix fresh_rate_info/graphic_memory_info for python3
add job for fresh_rate and graphic_memory
scripts: removable_storage_test: Resolved Tracebacks

removable_storage_test no longer tracebacks on locked SD/SDHC cards and
provides better output on OSError. Also handles ZeroDivisionErrors that
could occur in the summary when no data is written during testing.
jobs: mediacard.txt.in: SD/SDHC test instructions now specify UNLOCKED media cards
scripts/graphics_stress_test, scripts/rotation_test: make sure to
always reset the screen variable. Somehow the NVIDIA driver
manages to make it unusable after the first time.
debian/changelog: add the relevant bug report
apply pylint fix
change subprocess to check_output
fix by flask8
add one missing space
"[r=sylvain-pineau][bug=][author=shawn111] automatic merge by tarmac"
config: fix ConfigMeta to properly inherit variable_list and section_list

This patch fixes a problem where classes that derive from an existing
Config class, with at least one variable or section, would not see any
of the base objects in its special Meta class.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
box, run: move tests for `plainbox run` to the appropriate spot

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
commands: split rum and special commands to command and invocation classes

This change basically decouples the command object (which is instantiated
once, on startup) from the invocation object (which is instantiated each
time the command is executed)

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
plainbox:commands:sru: change SRUCommand not to instantiate CheckBox explicitly

This allows us to provide a customized checkbox object and reuse the sru
command in other programs

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
doc: usage.rst: typo fixed
doc: resources.rst: typo fixed
"[r=sylvain-pineau][bug=][author=sylvain-pineau] doc: typo fixed"