Rewrite autobuild references to buildscripts after project rename.
Revert "lcov upgrade"

This reverts commit c788280f8a6e09913484853ba5f9d4de6efa516a.

The source file is not available on any mirror I can find.
Update a whole bunch of download sources that have gone stale.

Additionally, try to stick to plain HTTP, since some in-house
platforms have wget installed without HTTPS and FTP support.
Ignore errors because we don't have an SSL certificate.

We will catch errors using the MD5 sum anyway.
Change source link to pcre.

It is still available at the old source, but the mirror is unstable.
Merge pull request #7 from kacfengine/autobuild_transition

Various fixes after Autobuild transition