[snipmatch] Bug 441002: Edit/Add Snippet Repository Wizards need banners

Change-Id: I1c7912ae14b43a9f507a520859e8c151f42cc471
[snipmatch] Bug 446326: Improve performance of snippet completion

The snippets are only validated when it is really needed (before
showing detail information in the completion or before applying the
snippet) instead of validating every snippet that matches the search
term.

Change-Id: I812dcb26b68c2e6c4c52cbfdb69d7dab2a23d65f
Signed-off-by: Olav Lenz <olav.lenz@gmail.com>
Merge "[snipmatch] Bug 446326: Improve performance of snippet completion"
Merge "[snipmatch] Bug 441002: Edit/Add Snippet Repository Wizards need banners"