Add register for webjumps

Altered items:
one-key-regs-webjump, require, one-key-regs-extras
Change colour of webjump registers
New register type for erc (IRC channels)
Bugfix: fix ERC register type

Also make "start-process" registers green colour.
Change process register names

Make them like *<NAME>*.
Also change "interactive elisp" to "ielm"

Altered items:
one-key-regs-custom-register-types
Bugfix: dont start ERC if already started
Note about using kv (no code changes)
Make keymap menu types persistent

Change naming of keymap menus so that they can be reconstructed
from the name.

Altered items:
one-key-create-menu-from-existing-keymap, one-key-types-of-menu