Add 2.0.7 entry
Bump version

2.0.7 ->
2.0.8
doc: update release information
Accept .rbt as RD source

[shocker-ja:1109]

Reported by OBATA Akio. Thanks!!!
Accept files in the current directory for directory theme style

You can put image files in the current directory when you use

  : theme
     .

style theme. You can use "./theme.rb" as theme file in the style.
Accept absolute path for image file path in theme
Use Jekyll 1.0.2
Follow Jekyll's API change
Indent
Use " (double quote) for string literal
Generate the current year automatically
Accept THEME_DIR/data/ as data directory for theme in $LOAD_PATH

It is the same rule for gemified theme.
Add have_tag? to element

It is a convenience method to find a custom tag in an element.
For example:

    if element.have_tag?("as-large-as-possible")
      elsement.as_large_as_possible
    end
theme syntax-highlighting: apply colors to more terms
theme syntax-highlighting: remove a debug print
theme syntax-highlighting: apply colors to predefined type

For example, "int" in C.
theme tag: support "left" tag
theme tag: accept "margin-top * N" tag

N is a scale for space.
theme tag: support margin-left and margin-right tags
theme tag: accept "merge-top" tag again

Reported by Masafumi Yokoyama. Thanks!!!