fix #12143
make customizer compilation code more generic
have customizer output Bootstrap Theme too; fixes #12003
grunt dist build-customizer
adjust filename to indicate that customize JS is minified
enable CSSLint in test suite; fixes #12094
bump grunt-contrib-less to v0.9.0
Merge pull request #12149 from twbs/bump-grunt-contrib-less

bump grunt-contrib-less to v0.9.0
extract raw-files.js generator out of Gruntfile into separate module
extract glyphicons.yml generator out of Gruntfile into separate module
no preboot
Merge pull request #12151 from wangsai/no-preboot

no preboot
updated path docs-assets to docs/assets
Merge pull request #12155 from Dudytz/master

updated path docs-assets to docs/assets
Merge pull request #12150 from twbs/extract-from-gruntfile

cleanup Gruntfile by extracting executable code