Merge branch 'develop' into stable

# Conditional Maven Plugin

This is a maven plugin that allows for the conditional setting of properties.

## Usage

```xml

<project>

    ...

    <build>

        ...

        <plugins>

            ...

            <plugin>

                <groupId>com.inteligr8</groupId>

                <artifactId>conditional-maven-plugin</artifactId>

                <version>...</version>

                <executions>

                    <execution>

                        <id>sample-boolean-test</id>

                        <phase>validate</phase>

                        <goals><goal>boolean</goal></goals>

                        <configuration>

                            <booleanProperty>a.proprety.to.test</booleanProperty>

                            <newProperty>a.new.property.to.set</newProperty>

                            <trueValue>A true value</trueValue>

                            <falseValue>A false value</falseValue>

                        </configuration>

                    </execution>

                </executions>

            </plugin>

            ...

        </plugins>

        ...

    </build>

    ...

</project>

```

## Goals

| Goal               | Description |

| ------------------ | ----------- |

| `boolean-property` | Set a property based on the value of another boolean property. |

| `file-existence`   | Set a property based on the existence of a file. |

### Goal: `boolean-property`

| Configuration Property | Data Type | Required | Default | Description |

| ---------------------- |:---------:|:--------:| ------- | ----------- |

| `booleanProperty`      | `string`  | Yes      |         | The name of a property.  Only evaluates to `true` if the property value is a boolean or string value of `true` at the time of the execution of this plugin.  If the property does not exist, is of a different data type, `NULL`, or has another value, it evaluates to `false`. |

| `newProperty`          | `string`  | Yes      |         | The name of a new property to create.  An existing property cannot be updated in Maven. |

| `trueValue`            | `string`  |          |         | If the `booleanProperty` configuration evaluates to `true`, use this to set the `newProperty` value.  This may only be a string literal at this time; it is not evaluated itself. |

| `falseValue`           | `string`  |          |         | If the `booleanProperty` configuration evaluates to `false`, use this to set the `newProperty` value.  This may only be a string literal at this time; it is not evaluated itself. |

| `charset`              | `string`  |          | `utf-8` | |

| `skip`                 | `boolean` |          | `false` | |

### Goal: `file-existence`

| Configuration Property | Data Type | Required | Default | Description |

| ---------------------- |:---------:|:--------:| ------- | ----------- |

| `file`                 | `string`  | Yes      |         | The name of a file, relative to the root directory of the Maven project.  Only evaluates to `true` if the file exists and has a non-zero length (see `emptyFileIsTrue` for one exception). |

| `emptyFileIsTrue`      | `boolean` |          | `false` | A zero-length file should evaluate to `true`. |

| `newProperty`          | `string`  | Yes      |         | The name of a new property to create.  An existing property cannot be updated in Maven. |

| `trueValue`            | `string`  |          |         | If the `file`/`emptyFileIsTrue` configurations evaluate to `true`, use this to set the `newProperty` value.  This may only be a string literal at this time; it is not evaluated itself. |

| `falseValue`           | `string`  |          |         | If the `file`/`emptyFileIsTrue` configurations evaluate to `false`, use this to set the `newProperty` value.  This may only be a string literal at this time; it is not evaluated itself. |

| `charset`              | `string`  |          | `utf-8` | |

| `skip`                 | `boolean` |          | `false` | |

	<version>1.0.1</version>

	<packaging>maven-plugin</packaging>

	<name>A Maven plugin for conditional operations</name>

	<name>Conditional Maven Plugin</name>

	<description>A Maven plugin for conditional property declarations</description>

	<url>https://bitbucket.org/inteligr8/conditional-maven-plugin</url>

	<licenses>

		<license>