Tag used to produce OSGI bundles of the 1.3.1 Distribution

Updated `ceylon.process` test

Fix plugin sample

Included as runtime OSGI bundle in the 1.2.2 release of the Ceylon IDE

Tag used to produce OSGI bundles of the 1.2.2 Distribution

Copy the `bin` directory to the embedded distribution

Tag used to produce OSGI bundles of the 1.2.1 Distribution with both

Old-style
and new R5-compliant OBR indexes (the ORB implementation of some OSGI
containers such as Apache Felix is still not compatible with the new R5
OBR syntax).

Make sure we'll not try to generate docs for tools that are not avail…

…able but have been included to be loaded on-demand (like `ceylon.format`)

Updated RPM spec file for 1.2.0

add error code