token-filter stop-word: add "is_" prefix to boolean column
doc: move suggest section to reference section (#206)
doc: remove suggest/tutorial (#206)
doc: move geolocation_search section to reference section (#206)
Merge pull request #213 from naoa/doc-move-section

doc: reconstruct documentation

GitHub: #206

Patch by Naoya Murakami. Thanks!!!
doc suggest: group execution log files

TODO:

    % make -C doc update-files
doc: update file list

    % make -C doc update-files
Remove a needless new line
Use named value explicitly for readability
packages: reduce used memory to build on poor machine

We use more swap rather than memory.
packages: use "sudo" instead of running by root
Use "Groonga" notation
packages: increase boot timeout
cmake: remove commented out unset()

Redmine: refs #2442, #2582
cmake: remove status message for compiler flag checks

GitHub: fixes #22
Export grn_expr_get_keywords()
power8: fix build failure

See also:

  * http://lists.askmonty.org/pipermail/commits/2014-October/006752.html
  * lp:maria/10.0 4437

Patch by Sergey Vojtovich. Thanks!!!
cmake: add a prefix GRN_ to options

MECAB_CONFIG -> GRN_MECAB_CONFIG
MECAB_CONFIG_ABSOLUTE_PATH -> GRN_MECAB_CONFIG_ABSOLUTE_PATH

GitHub: ref mroonga/mroonga#23