This update fixes several issues for the software-management-stack:
- zypper:
- bnc#785832: Fix source-install to accept package names and lookup their source package
- bnc#783539: Add patch/list-patches option --category to man
- bnc#779716: Fix zypper output if stdout is not a tty
- bnc#777323: Rephrase misleading sections about zypp.conf and zypper.conf
- bnc#773641: Properly encode data in XML output
- Use edition style on table columns
- Enable zypper-log reading lzma (.xz) compressed logs.

- libzypp:
- bnc#773467: Fixed typo in zypp.conf
- bnc#769819: Filter zero sized devices in disk usage counter
- bnc#665327: Fix possibly reporting timeout as "aborted by user"
- bnc#765528: zypp.conf:servicesdir is ignored
- bnc#745404: allow libcurl to take proxy from environment if proxy is not configured or disallowed
- do not fork the uuidgen program, use kernel interface instead
- remove obsolete hicolor-icon-theme BuildRequires
- set $ZYPP_IS_RUNNING during commit

- libsolv:
- fix susetags parser, it ignored the filelist of the last solvable
- fix encoding of large values

- libzypp-testsuite-tools:
- general improvements and additions in the testsuite