Merge pull request #341 from mabrand/fix-gdb

package gdb: fix undefined symbols in bundled readline
package gnutls: fix libopts detection causing build failures

http://git.buildroot.net/buildroot/commit/?id=87815fc695bcb4ef5a48c09ab1ffcd0c134da43a
update package sqlite
lean and mean gsoap
fix gsoap linking
lean and mean qt (Qt 4)
lean and mean qtbase (Qt 5)
lean and mean vmime
revert to working vmime version