Change runCommandRemote() to runCommand()

Change runCommandRemote() to runCommand(), you decide if the command is
running local or remote depending of the stage you put the
scm/force-update task. Remove the last $result =
$this->runCommandLocal($command), not necessary.
Task for running multiple manually commands

The purpose of this task is to provide a way to run multiple custom
commands for your specific project, before Magallanes will have build-in
tasks for your needs. Also maybe you'll just not consider you should
create custom tasks for all commands you need (e.g. specific user rights
for specific files and directories).
manually task

one more example for the manually task
Fix ManuallyTask namespace

namespace Mage\Task\BuiltIn\General
Rename DoctrineMigrate to DoctrineMigrateTask

I hope this is the reason it doesn't works.
Add optional parameters for symfony2/cache-clear

Add optional parameters for symfony2/cache-clear task like --no-warmup.
Merge pull request #158 from samuel4x4/develop

Bug fix for scm/force-update, add general/manually task, bug fix for symfony2/doctrine-migrate, improve symfony2/cache-clear