added a missing check for the provider key
merged branch fabpot/missing-provider-key-check (PR #7937)

This PR was merged into the 2.1 branch.

Discussion
----------

added a missing check for the provider key

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Commits
-------

5b7e1e6 added a missing check for the provider key
added additional tests to cover invalid argument exceptions in OutputFormatterStyle component
[Filesystem] Fix regression introduced in 10dea948
[Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
merged branch stloyd/bugfix/fix_regression (PR #7944)

This PR was merged into the 2.1 branch.

Discussion
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[Filesystem] Fix regression introduced in 10dea94

This is one of ideas to fix the regression from 10dea948, @kachkaev what do you think?

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature? | no
| Tests pass?  | yes
| Fixed tickets | #7920
| License       | MIT

Commits
-------

e4913f8 [Filesystem] Fix regression introduced in 10dea948
merged branch stloyd/bugfix/process_tests (PR #7947)

This PR was merged into the 2.1 branch.

Discussion
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[Process] Cleanup tests & prevent assertion that kills randomly Travis-CI

Commits
-------

05b987f [Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
fixed CS
updated CHANGELOG for 2.1.10
update CONTRIBUTORS for 2.1.10
updated VERSION for 2.1.10
bumped Symfony version to 2.1.11-DEV
[Console] Added dedicated testcase for HelperSet class
merged branch warmans/component_console_helper_helperset_tests_2.1 (PR #7969)

This PR was squashed before being merged into the 2.1 branch (closes #7969).

Discussion
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[Console] Added dedicated testcase for HelperSet class

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | NA
| License       | MIT
| Doc PR        | NA

Previously the HelperSet class was only tested by way of the Application testcase. This patch adds a dedicated testcase and increases test coverage of the class to 100%.

Commits
-------

37af771 [Console] Added dedicated testcase for HelperSet class
Fixed Loader import
Added a test case for Loader::import().
merged branch jakzal/loader-fix (PR #7987)

This PR was submitted for the master branch but it was merged into the 2.1 branch instead (closes #7987).

Discussion
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[Config] FIxed Loader::import()

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? |no
| Tests pass?   | yes
| Fixed tickets | fixes #7965, replaces #7983
| License       | MIT
| Doc PR        | -

Commits
-------

984e56a [Config] Added a test case for Loader::import().
2f69860 [Config] Fixed Loader import
Fixed parsing of leading blank lines in folded scalars. Closes #7989.
merged branch ezzatron/yaml-folded-leading-newlines (PR #7997)

This PR was merged into the 2.1 branch.

Discussion
----------

Fixed parsing of leading blank lines in folded scalars.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #7989
| License       | MIT
| Doc PR        | n/a

Fixed the issue raised in #7989. The cause was in the way the parser determined the indentation level of block scalars. When the indentation is not manually specified, the parser now determines the indentation from the first *non-empty* line as per section [8.1.1.1.](http://www.yaml.org/spec/1.2/spec.html#id2793979) of the spec.

Commits
-------

a5441b2 Fixed parsing of leading blank lines in folded scalars. Closes #7989.
Fixed XML syntax.