Gradle build scripts should specify the source encoding

[zosrothko]

Hi

On my French Windows 10 os with default encoding as Cp1252, I got the build errors below.
IMHO, Ironjacamar build script should specify that the source encoding is UTF-8. BTW, Gradle just release the 4.4 version.

C:\Users\fandre\Documents\MXW\ironjacamar>gradlew build
...
...
C:\Users\fandre\Documents\MXW\ironjacamar\api\src\main\java\javax\resource\spi\work\SecurityContext.java:132: error: unmappable character for encoding Cp1252
    * principal.ÔÇ?
                  ^
C:\Users\fandre\Documents\MXW\ironjacamar\api\src\main\java\javax\resource\spi\work\SecurityContext.java:143: error: unmappable character for encoding Cp1252
    * the type of the created principals.ÔÇ?
                                           ^
C:\Users\fandre\Documents\MXW\ironjacamar\api\src\main\java\javax\resource\spi\work\SecurityContext.java:147: error: unmappable character for encoding Cp1252
    * ÔÇ£to employ the password validation facilities of its containing runtime.ÔÇ?
3 errors
:api:javadoc FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':api:javadoc'.
> Javadoc generation failed. Generated Javadoc options file (useful for troubleshooting): 'C:\Users\fandre\Documents\MXW\ironjacamar\api\build\tmp\javadoc\javadoc.options'

C:\Users\fandre\Documents\MXW\ironjacamar>gradlew -version

------------------------------------------------------------
Gradle 2.13
------------------------------------------------------------

Build time:   2016-04-25 04:10:10 UTC
Build number: none
Revision:     3b427b1481e46232107303c90be7b05079b05b1c

Groovy:       2.4.4
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_141 (Oracle Corporation 25.141-b15)
OS:           Windows 10 10.0 amd64