update list of dropped locales to match mozilla.org

+ remove bugzilla_locales array
Merge pull request #191 from pascalchevrel/update_mozilla_locales

update list of dropped locales to match mozilla.org
Sources: clean up arrays from unsupported locales
Merge pull request #192 from flodolo/cleanup_sources

Sources: clean up arrays from unsupported locales
Issue #193: add a summary at bottom of view, refactor code
Merge pull request #194 from pascalchevrel/issue-193-summary-stringcount-view

Issue #193: add a summary at bottom of view, refactor code
Errors view: no errors for missing tags not bound to strings
Merge pull request #195 from flodolo/error_tags

Errors view: no errors for missing tags not bound to strings
Reorganize lang files for new /contribute
Merge pull request #196 from flodolo/pr2390_contribute

Reorganize lang files for new /contribute
Add bn-IN to Pontoon locales
Merge pull request #197 from flodolo/bnIN_pontoon

Add bn-IN to Pontoon locales
November snippets
Merge pull request #198 from flodolo/master

November snippets
Add 'gl' to Android new page
Merge pull request #199 from flodolo/gl_android

Add 'gl' to Android new page
Fix snippets

Didn’t remove the old files completely
Merge pull request #200 from flodolo/fix_snippets

Fix snippets
Global status: add activated locales to table footer
Merge pull request #201 from flodolo/table_footer

Global status: add activated locales to table footer