Push extension configs into a subdir of app/config/
Create app/config/extensions/ and add index.html
R.I.P. info()
Less info()
Add 'available' test for twig.

Pinging @gawainlynch -> Done!
Merge pull request #1633 from rixbeck/check-custfield

Avoids to call checkTablesIntegrity() in checkConfig() method...
Merge pull request #1631 from GawainLynch/feature/BaseExtension-cleanup

BaseExtension cleanup
Add helper for adding console command
Like, REALLY, minor tweaks.
Alignment of paths
Code styling
Fixing small regression in #1633
Tweak .gitignore to ignore .yml files in subfolders of app/config.
extensionspath reference
Merge remote-tracking branch 'origin/master' into issue-1637
Forgotten new pager object
Store the Composer cache in Bolt's cache dir
Merge pull request #1640 from rixbeck/bug-pager

Forgotten new pager object reported in 1639
Merge pull request #1636 from jkazimir/master

Add helper for adding console command [#851]
Merge pull request #1641 from GawainLynch/hotfix/ComposerCache

Store the Composer cache in Bolt's cache dir