Squashed 'bc/' content from commit 1bc601c

git-subtree-dir: bc
git-subtree-split: 1bc601cb6363ebbc96abbc9e6c917a85f5c12e06
Merge commit 'ea5b148b4bb28c64a85751d09a1a2ebe87084656' as 'bc'
[packaging] add rpm packaging
bc-1.06-dc_ibase.patch from SuSE
bc-1.06.95-memleak.patch from SuSE

Signed-off-by: David Greaves <david.greaves@jollamobile.com>
bc-1.06.95-matlib.patch from SuSE
bc-1.06.95-sigintmasking.patch from SuSE

Signed-off-by: David Greaves <david.greaves@jollamobile.com>