changed gravatar url to protocol-agnostic format
Merge pull request #99 from webvariants/composer-fixes

Composer fixes
fixed minor errors reported by JSHint

Unfortunately I cannot rebuild the dw-2.0.js yet.
set the installed_at date when inserting a plugin into the database (fixes #84)

When MySQL is running in the TRADITIONAL mode, trying to insert a row
without a value for a "DATETIME NOT NULL" column leads to an error. By
default, this mode is not set on MySQL/MariaDB.

MySQL 5.6.5+ would support setting a default value for a DATETIME
column, but I don't want to raise the minimum requirement for this sole
reason.
make sure libs are only loaded once
add product table and relations
fix typo in model name
fix column types
add created_at and deleted colums for products
add expiration date to product relations
load chart locale, if different from UI
allow hooking into visualize step sidebar
bumped version. changelog
changelog
changelog
replaced jsmin.php with jshrink
specified dw-2.0.js in Makefile
replaces JSMin with JShrink
cleaned up makefile
changelog