Blast Results dialog: add buttons for same actions as in context menu

[Elaine Meng]

The context menu actions are not very discoverable by people who don't read the help, and I'm always messing up my set of chosen hits while trying to remember which key combination shows the context menu. Thus I'm thinking there should be buttons on the GUI to perform these actions, in addition to the context menu approach.

I'm thinking an additional button row immediately beneath the table of hits:

[Load Structures] [Show Sequence Alignment] [Open Database Webpage]

...or if you don't think that is explanatory enough, maybe with preceding text, something like:

For chosen hits: [Load Structures] [Show Sequence Alignment] [Open Database Webpage]

I'm also thinking there should be a colon after the "Show columns" text that's already there:

Show columns: [All] [Default] [Standard] [Set Default] [Toggle controls]

[Zach Pearson]

​I implemented the buttons and added a label "For selected entries:" next to it. I thought it looked OK at the bottom. Putting it right below the table is trivial, though; let me know if you prefer that when you see it, or if any other changes are necessary.

[Elaine Meng]

The placement looks fine to me!   I suggest changing the text from "For Selected Entries:" to "For chosen entries:" 

... because we try to reserve the word selected/selection to mean selected items in the 3D scene, and because "Show columns" above it does not have both words capitalized.  Another minor tweak if you don't mind is to add a colon there, "Show columns:"

Thanks!

[Elaine Meng]

It's mostly done, but there are minor text fixes suggested in the last comment.

[Zach Pearson]

Will be changed in tomorrow's build