#2893 generalized symfony2 console directory
added cache:warmup alias
split bundler-commands into seperate lines

This makes adding, deleting and merging a lot easier.
add sidekiq to bundler-commands

closes #2779
remove foreman from bundler-commands

closes #1825
remove spin from bundler-commands

closes #1817
remove ruby from bundler-commands

related to #1587
closes #2200
closes #2561
remove berkshelf from bundler-commands

fixes #2076
Add 'outdated' and 'platform' completions to bundler plugin
remove double bundle exec
add spring to bundler-commands
add pry to bundler-commands
added Bundler readme file
add BUNDLED_COMMANDS functionality to bundler plugin
Merge pull request #2923 from Kriechi/bundler-fixes

Bundler fixes
Merge pull request #2914 from bezoerb/symfony2-general

generalized symfony2 console directory
Brings all directory stuff to directories.zsh

- Cleans out aliases.zsh.
- Removes unneeded cd function.
Pushes autoenv code to its plugin.

Sources the activate.sh file or informs the user, that its not
available.
Overriding the cd function, as it was formerly done, is not needed
anymore, activate.sh does this by itself.
Refactors history alias and moves it.

More compact case statement instead of the ugly if elif... else
statement. Moves it to history.zsh
Moves remaining aliases to misc and deletes file.

There were only three aliases left in aliases.zsh
File deleted!