- only wrap package descriptions when outputting to a tty, simplifies parsing descriptions with external utils
- introduce -i (--nocase) flag which makes all matching operations case insensitive
- introduce "find" command which searches package names and descriptions (e.g. opkg -i find "*autoconfig*")
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34202 3c298f89-4303-0410-b956-a3cf2f4a3e73
