general tools for used in other apps
* moved 'templatetags' from 'apps/indicator' to 'apps/utils'
* '.gitignore' to ignore 'fixtures_bak'
* moved js plugins from 'apps/indicator/static/plugins' to
  'staticfiles/plugins'

apps/recommend:
* updated 'recommend.models';
    o commented 'recommend.models.ResearchCombination' (not used)
* implemented views 'add_edit_blog_info' and 'ajax_add_edit_configs';
* added pages 'templates/recommend/add_edit_blog_info.html',
    'add_edit_blog_info_error.html';
    o related css and javascripts files
* added 'tools.py';

* added 'utils/tools.py' for placing generic functions;
* deleted 'initial_data.json' (mv 'fixtures' to 'fixtures_bak');
* small fixes to 'indicator.models', 'sciblog.models' and
  'sfaccount.views'

* fixed automatically show 'proper_nouns' annotation in blog:
  recovered the line 'import signals' in 'sciblog.models'
* added 'is_ok()' method for 'recommend.models.ResearchConfig';

* improved 'thickbox' plugin to use 'jquery-1.9.x';
* upgraded 'SheetDefault.html', 'NewDeleteIndex.html' and other pages
  to use 'jquery-1.9.x';
* improved 'IndexDesc.html' to deal with the problem of no related
  annotation found;

* 'indicator.tools.get_record()' added param 'number', and updated
  the format of return data;
* added 'get_num_record()' and 'get_num_record_std()' to
  'indicator.tools';
* improved 'indicator.views.ajax_get_card_data_chart()',
  now can get data by 'num' or by 'date';
* improved 'indicator.views.ajax_get_card_data_table()',
  to provide the needed data requested from 'detail_card';
* improved js function 'chart_getdata_draw()' in 'SheetDefault.html';
* 'card_chart.js': renamed 'redraw_chart()' to
  'detail_chart_getdata_draw()', and updated to get data by type;
* updated 'table' of 'detail_card' in 'SheetDefault.html';
* improved js function 'get_card_data_table()' for providing and
  displaying record data in 'detail_card' table.

TODO:
* add/delete/edit record data