dzil: add Dist::Zilla::Plugin::CheckSelfDependency

Very embarassing when it happens.
...and add missing Dist::Zilla::Plugin::Travis::ConfigForReleaseBranch
move PAUSE::Encrypted dep declaration to dist.ini
[dzil] mark ContributorsFromGit minimum as 0.010

...and move to dist.ini.
Make our maximum acceptable Perl level v5.10.1
v0.045

	* [dzil] add CheckSelfDependency (ensures no recursive deps)
	* [dzil] add missing dzil plugin dep to dist.ini *le sigh*
	* [dzil] make our max_target_perl v5.10.1
	* [dzil] mark ContributorsFromGit minimum as 0.010
	* [dzil] move PAUSE::Encrypted dep declaration to dist.ini
	* [dzil] ...and add missing plugin: Travis::ConfigForReleaseBranch
	* [dzil] add CheckSelfDependency