Add to funky_ids.fa example from #74.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>
Revert "Use -target_only option when fetching sequences from BLAST+ database."

This reverts commit 0d543f5139399bb09ffd14bb330fc0f1b29138ed.

-target_only still (in BLAST 2.2.30+) doesn't play well with certain kinds of
ids.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>
Improve CLI: Tab Completion of File Paths

* Earlier blanks while entering database paths through command line
  interface could have caused problems.
* Readline allows one to tab complete directories which is helpful for
  entering the binaries and database paths.

Signed-off-by: Vivek Rai <vivekraiiitkgp@gmail.com>