removed default "no sessions found" message from course manager page template. refs #203
added new course loading indicator label to language files.
refs #203
added "loading all course sessions" status indicator to course manager. separated sessions toolbar visibility handling from the status indicator container to provide earlier/better loading status feedback to the user. fixes #203
converted line endings to unix.
converted line endings to unix.
code cleanup: replaced tabs for indentation with four blankspaces.
code cleanup: fixed indentation levels.
fixed various typos in code comments.
code cleanup: replaced longhand object/array declaration code with shorthand equivalent.
updated distro d/l url.
clarified upgrade instructions by calling out the target versions.
fixed start/end date display switcheroo. refs #225
Merge pull request #227 from stopfstedt/bug225

fixed start/end date display switcheroo
path correction in stylesheet. fixes #226
Merge pull request #228 from stopfstedt/bug226

path correction in stylesheet
added ext. id to course cloning process. refs #229
Merge pull request #230 from stopfstedt/bug229

added ext. id to course cloning process
fixes #193. moved the addition of newly created offerings to the session model after they've been saved to the server and their db id has been received back.
Merge pull request #231 from stopfstedt/bug193

fixes #193. moved the addition of newly created offerings to the session...
refactored generateProgressDivMarkup(): pulled message out into a method argument. added docblock.