sqlite3: exit when sqlite is requested but not found

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
sqlite3: fix the case when libsqlite3 is a symlink

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
sqlite3: fix misleading error message

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
sqlite3: fix some copy-paste

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
sqlite3: remove trailing spaces

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Merge pull request #11 from groleo/for-upstream

sqlite3 fixes