add polkit install bypass with environment variable

LEAP_SKIP_COPY_POLKIT should be set to 1 to skip the post-install
data copy to the policykit folder.
remove email and soledad components from tree
remove soledad / email requirements for 0.2 release
Merge branch 'pre-release-0.2.0' into release-0.2.0

This merge contains today's state of develop branch,
minus soledad and email components.
remove remaining soledad import
add a moveon note on master readme to avoid mistakes
bump version
Merge branch 'release-0.2.0' into release/v0.2.0

removing soledad + email from release branch created with git flow
Add correct text of the GPL-3
fix pep8 that was breaking pkg build
rename manpage

I am also commiting the manpage itself temporarily,
we should leave only the .rst in the repo!
fill empty docs, were breaking sphixdoc dh step
fix tests (resources hash + argparse)
add underscore to the $HOME pattern exception
pep8
avoid pep8 from choking
remove libgnutls from readme
add comment about jsonschema ver
add jsonschema 0.8 as a workaround for old ver
hide jsonschema exception in tests