doc: fix help tag for option doesn't need vertical bar `|`
Merge branch 'fix-help-tag' into dev: fix #16
doc: Readme driven development! incremental last-pattern
spec: add test for incremental next/prev
spec: add .themisrc
spec: incremental last-pattern
Implement interactive last-pattern

- if the pattern in the command-line is empty and type
  <Over>(incsearch-next) or <Over>(incsearch-prev), :h last-pattern (@/)
  automatically inserted!
- You can `/<CR>` by default to use last-pattern, but it enables
  incremental cursor moving.
- Of course, it works with /offset too
- ref: #14 Thanks for the idea, @gelguy
spec: fix test case for incremental last-pattern

- This behavior is compatible with default last-pattern with count
Merge branch 'inc-last-pattern' into dev
spec: add failing case for smartcase detection
fix smartcase detection with handling \%C, \%V, \%U

- fix #20
spec: add failing test case for smart case detection

- it doesn't with repetitive escaped character
Improve \%(non-\)\=escaped backslash handling

- Now it works with repetitive escaped character like '\V\V'
do not use count for \@<=
Add comment for \@<=
Merge branch 'fix-travis-regex' into dev
Update vital-over: now <C-n>/<C-p> works by default
Merge branch 'update-vital' into dev
update vital-over: fix history behavior
Merge branch 'update-vital' into dev